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id string	title string	abstract string	keyphrases sequence
1108.6266	Extended Theories of Gravity	Extended Theories of Gravity can be considered a new paradigm to cure shortcomings of General Relativity at infrared and ultraviolet scales. They are an approach that, by preserving the undoubtedly positive results of Einstein's Theory, is aimed to address conceptual and experimental problems recently emerged in Astrop...	[ "gravity", "dark energy", "extended theories", "ricci scalar", "extra degree" ]
1008.3375	New models of chaotic inflation in supergravity	We introduce a new class of models of chaotic inflation inspired by the superconformal approach to supergravity. This class of models allows a functional freedom of choice of the inflaton potential V = \|f(ϕ)\|^2. The simplest model of this type has a quadratic potential m^2ϕ^2/2. Another model describes an inflaton fiel...	[ "chaotic inflation", "supergravity", "inflaton potential" ]
1607.06077	Primordial Black Holes as Dark Matter	The possibility that the dark matter comprises primordial black holes (PBHs) is considered, with particular emphasis on the currently allowed mass windows at 10^16 - 10^17g, 10^20 - 10^24g and 1 - 10^3 M_⊙. The Planck mass relics of smaller evaporating PBHs are also considered. All relevant constraints (lensing, dynami...	[ "black hole", "dark matter", "planck mass relic", "early universe" ]
1602.01765	Constraints on the Coupling between Dark Energy and Dark Matter from CMB data	We investigate a phenomenological non-gravitational coupling between dark energy and dark matter, where the interaction in the dark sector is parameterized as an energy transfer either from dark matter to dark energy or the opposite. The models are constrained by a whole host of updated cosmological data: cosmic microw...	[ "dark energy", "dark matter", "non-gravitational coupling" ]
1309.0605	Rapidly rotating neutron stars in scalar-tensor theories of gravity	We present the field equations governing the equilibrium of rapidly rotating neutron stars in scalar-tensor theories of gravity, as well as representative numerical solutions. The conditions for the presence of a nontrivial scalar field and the deviations from the general relativistic solutions are studied. Two example...	[ "neutron star", "scalar-tensor theory", "gravity" ]
1701.02544	Inflationary Primordial Black Holes as All Dark Matter	Following a new microlensing constraint on primordial black holes (PBHs) with ∼10^20–10^28 g [1], we revisit the idea of PBH as all Dark Matter (DM). We have shown that the updated observational constraints suggest the viable mass function for PBHs as all DM to have a peak at ≃ 10^20 g with a small width σ≲ 0.1, by imp...	[ "black hole", "dark matter", "early universe" ]
0911.3380	Quasi-Single Field Inflation and Non-Gaussianities	In quasi-single field inflation models, massive isocurvature modes, that are coupled to the inflaton and have mass of order the Hubble parameter, can have nontrivial impacts on density perturbations, especially non-Gaussianities. We study a simple example of quasi-single field inflation in terms of turning inflaton tra...	[ "quasi-single field inflation", "non-gaussianitie", "cosmological collider physics", "scalar field", "inflationary model" ]
1009.1782	Lower limit on the strength and filling factor of extragalactic magnetic fields	High energy photons from blazars can initiate electromagnetic pair cascades interacting with the extragalactic photon background. The charged component of such cascades is deflected and delayed by extragalactic magnetic fields (EGMF), reducing thereby the observed point-like flux and leading potentially to multi degree...	[ "extragalactic magnetic field", "magnetic field", "intergalactic medium" ]
1301.7182	On the Renormalization of the Effective Field Theory of Large Scale Structures	Standard perturbation theory (SPT) for large-scale matter inhomogeneities is unsatisfactory for at least three reasons: there is no clear expansion parameter since the density contrast is not small on all scales; it does not fully account for deviations at large scales from a perfect pressureless fluid induced by short...	[ "effective field theory", "large scale structures", "non-linear regime" ]
1211.6269	The Matter Bounce Scenario in Loop Quantum Cosmology	In the matter bounce scenario, a dust-dominated contracting space-time generates scale-invariant perturbations that, assuming a nonsingular bouncing cosmology, propagate to the expanding branch and set appropriate initial conditions for the radiation-dominated era. Since this scenario depends on the presence of a bounc...	[ "matter bounce scenario", "loop quantum cosmology", "holonomy" ]
1001.2308	Primordial Black Holes as All Dark Matter	We argue that a primordial black hole is a natural and unique candidate for all dark matter. We show that, in a smooth-hybrid new double inflation model, a right amount of the primordial black holes, with a sharply-defined mass, can be produced at the end of the smooth-hybrid regime, through preheating. We first consid...	[ "black hole", "dark matter", "early universe" ]
1307.6090	An improved upper limit to the CMB circular polarization at large angular scales	Circular polarization of the Cosmic Microwave Background (CMB) offers the possibility of detecting rotations of the universe and magnetic fields in the primeval universe or in distant clusters of galaxies. We used the Milano Polarimeter (MIPOL) installed at the Testa Grigia Observatory, on the italian Alps, to improve ...	[ "upper limit", "polarization", "angular scale" ]
1505.04443	Reconstructing the interaction between dark energy and dark matter using Gaussian Processes	We present a nonparametric approach to reconstruct the interaction between dark energy and dark matter directly from SNIa Union 2.1 data using Gaussian processes, which is a fully Bayesian approach for smoothing data. In this method, once the equation of state (w) of dark energy is specified, the interaction can be rec...	[ "dark energy", "dark matter", "gaussian process" ]
1210.0201	The Effective Field Theory of Dark Energy	We propose a universal description of dark energy and modified gravity that includes all single-field models. By extending a formalism previously applied to inflation, we consider the metric universally coupled to matter fields and we write in terms of it the most general unitary gauge action consistent with the residu...	[ "effective field theory", "dark energy", "gravity", "non-minimal coupling", "glpv theory" ]
0905.4720	String Axiverse	String theory suggests the simultaneous presence of many ultralight axions possibly populating each decade of mass down to the Hubble scale 10^-33eV. Conversely the presence of such a plenitude of axions (an "axiverse") would be evidence for string theory, since it arises due to the topological complexity of the extra-...	[ "string axiverse", "particle", "axion-like particle", "boson", "dark matter" ]
1403.2757	Kerr black holes with scalar hair	We present a family of solutions of Einstein's gravity minimally coupled to a complex, massive scalar field, describing asymptotically flat, spinning black holes with scalar hair and a regular horizon. These hairy black holes (HBHs) are supported by rotation and have no static limit. Besides mass M and angular momentum...	[ "black hole", "scalar hair", "gravity", "kerr", "bosonic field" ]
1310.0464	The Effective Field Theory of Large Scale Structures at Two Loops	Large scale structure surveys promise to be the next leading probe of cosmological information. It is therefore crucial to reliably predict their observables. The Effective Field Theory of Large Scale Structures (EFTofLSS) provides a manifestly convergent perturbation theory for the weakly non-linear regime of dark mat...	[ "effective field theory", "large scale structures", "matter power spectrum", "three-loop order" ]
1201.2434	Observational Probes of Cosmic Acceleration	The accelerating expansion of the universe is the most surprising cosmological discovery in many decades, implying that the universe is dominated by some form of "dark energy" with exotic physical properties, or that Einstein's theory of gravity breaks down on cosmological scales. The profound implications of cosmic ac...	[ "cosmic acceleration", "dark energy", "baryon acoustic oscillation", "expansion history", "dark matter" ]
0903.0866	The Physics of Cosmic Acceleration	The discovery that the cosmic expansion is accelerating has been followed by an intense theoretical and experimental response in physics and astronomy. The discovery implies that our most basic notions about how gravity work are violated on cosmological distance scales. One simple fix is the introduction of a cosmologi...	[ "cosmic acceleration", "relativity", "dark energy", "late time", "cdm model" ]
0910.0822	Thermodynamics of dark energy interacting with dark matter and radiation	We investigate the validity of the generalized second law of thermodynamics, in the cosmological scenario where dark energy interacts with both dark matter and radiation. Calculating separately the entropy variation for each fluid component and for the apparent horizon itself, we show that the generalized second law is...	[ "dark energy", "dark matter", "thermodynamic" ]
1109.6571	Gravitational redshift of galaxies in clusters as predicted by general relativity	The theoretical framework of cosmology is mainly defined by gravity, of which general relativity is the current model. Recent tests of general relativity within the ΛCold Dark Matter (CDM) model have found a concordance between predictions and the observations of the growth rate and clustering of the cosmic web. Genera...	[ "cluster", "general relativity", "gravitational redshift" ]
1906.10218	Cosmological constraints on post-Newtonian parameters in effectively massless scalar-tensor theories of gravity	We study the cosmological constraints on the variation of the Newton's constant and on post-Newtonian parameters for simple models of scalar-tensor theory of gravity beyond the extended Jordan-Brans-Dicke theory. We restrict ourselves to an effectively massless scalar field with a potential V ∝ F^2, where F(σ)=N_pl^2+ξ...	[ "post-newtonian parameter", "scalar-tensor theory", "gravity" ]
1504.02311	The origin, evolution and signatures of primordial magnetic fields	The universe is magnetized on all scales probed so far. On the largest scales, galaxies and galaxy clusters host magnetic fields at the micro Gauss level coherent on scales up to ten kpc. Recent observational evidence suggests that even the intergalactic medium in voids could host a weak ∼ 10^-16 Gauss magnetic field, ...	[ "primordial magnetic field", "magnetic field", "universe", "galaxy cluster", "astrophysic" ]
1307.3220	On the Velocity in the Effective Field Theory of Large Scale Structures	We compute the renormalized two-point functions of density, divergence and vorticity of the velocity in the Effective Field Theory of Large Scale Structures. Because of momentum and mass conservation, the corrections from short scales to the large-scale power spectra of density, divergence and vorticity must start at o...	[ "velocity", "effective field theory", "large scale structures", "non-linear regime" ]
1109.3350	Self-consistent evolution of magnetic fields and chiral asymmetry in the early Universe	We show that the evolution of magnetic fields in a primordial plasma, filled with Standard Model particles, at temperatures T > 10 MeV is strongly affected by the quantum chiral anomaly – an effect that has been neglected previously. Although reactions equilibrating left and right-chiral electrons are in deep thermal e...	[ "magnetic field", "chiral asymmetry", "early universe", "relativistic plasma", "baryogenesis" ]
1402.4090	Astrophysical and Dark Matter Interpretations of Extended Gamma-Ray Emission from the Galactic Center	We construct empirical models of the diffuse gamma-ray background toward the Galactic Center. Including all known point sources and a template of emission associated with interactions of cosmic rays with molecular gas, we show that the extended emission observed previously in the Fermi Large Area Telescope data toward ...	[ "dark matter", "galactic center", "gamma-ray excess", "astrophysical background" ]
1412.2777	Evidence for interacting dark energy from BOSS	The result presented by the BOSS-SDSS Collaboration measuring the baryon acoustic oscillations of the Lyman-α forest from high-redshift quasars indicates a 2.5σ departure from the standard Λ-cold-dark-matter model. This is the first time that the evolution of dark energy at high redshifts has been measured, and the cur...	[ "dark energy", "boss", "dark matter" ]
1810.11855	An analytic implementation of the IR-resummation for the BAO peak	We develop an analytic method for implementing the IR-resummation of arXiv:1404.5954, which allows one to correctly and consistently describe the imprint of baryon acoustic oscillations (BAO) on statistical observables in large-scale structure. We show that the final IR-resummed correlation function can be computed ana...	[ "ir-resummation", "bao peak", "baryon acoustic oscillation" ]
1912.10437	Primordial black holes and gravitational waves from parametric amplification of curvature perturbations	We investigate a new mechanism to create large curvature perturbations on small scales due to parameter resonance in a single-field inflationary model with a small periodic structure upon the potential. After reentering the horizon, the amplified curvature perturbations can lead to observable primordial black holes as ...	[ "gravitational wave", "curvature perturbation", "primordial black hole" ]
0901.0265	Advances in Inflation in String Theory	We provide a pedagogical overview of inflation in string theory. Our theme is the sensitivity of inflation to Planck-scale physics, which we argue provides both the primary motivation and the central theoretical challenge for the subject. We illustrate these issues through two case studies of inflationary scenarios in ...	[ "string theory", "inflationary model building", "inflaton candidate" ]
1308.4685	Transforming gravity: from derivative couplings to matter to second-order scalar-tensor theories beyond the Horndeski Lagrangian	We study the structure of scalar-tensor theories of gravity based on derivative couplings between the scalar and the matter degrees of freedom introduced through an effective metric. Such interactions are classified by their tensor structure into conformal (scalar), disformal (vector) and extended disformal (traceless ...	[ "gravity", "derivative coupling", "scalar-tensor theory", "horndeski theory" ]
1511.00238	Quark stars admixed with dark matter	Compact stars consisting of massless quark matter and fermionic dark matter are studied by solving the Tolman-Oppenheimer-Volkoff equations for two fluids separately. Dark matter is further investigated by incorporating inter-fermionic interactions among the dark matter particles. The properties of stars made of quark ...	[ "star", "dark matter", "significant gravitational effect" ]
1404.2601	Inflation and String Theory	We review cosmological inflation and its realization in quantum field theory and in string theory. This material is a portion of a book, also entitled "Inflation and String Theory", to be published by Cambridge University Press.	[ "string theory", "cosmology", "axion", "inflationary model", "large-field inflation" ]
1110.6274	Weakly magnetized black holes as particle accelerators	We study collision of particles in the vicinity of a horizon of a weakly magnetized non-rotating black hole. In the presence of the magnetic field innermost stable circular orbits (ISCO) of charged particles can be located close to the horizon. We demonstrate that for a collision of two particles, one of which is charg...	[ "black hole", "particle accelerator", "magnetic field" ]
1008.1943	Properties and uncertainties of scalar field models of dark energy with barotropic equation of state	The dynamics of expansion and large scale structure formation in the multicomponent Universe with dark energy modeled by the minimally coupled scalar field with generalized linear barotropic equation of state (EoS) are analyzed. It is shown that the past dynamics of expansion and future of the Universe – eternal accele...	[ "scalar field model", "dark energy", "barotropic equation" ]
1702.02143	Echo of interactions in the dark sector	We investigate the observational constraints on an interacting vacuum energy scenario with two different neutrino schemes (with and without a sterile neutrino) using the most recent data from CMB temperature and polarization anisotropy, baryon acoustic oscillations (BAO), type Ia supernovae from JLA sample and structur...	[ "dark sector", "dark matter", "non-gravitational coupling" ]
1108.0893	Loop Quantum Cosmology: A Status Report	The goal of this article is to provide an overview of the current state of the art in loop quantum cosmology for three sets of audiences: young researchers interested in entering this area; the quantum gravity community in general; and, cosmologists who wish to apply loop quantum cosmology to probe modifications in the...	[ "loop quantum cosmology", "big bang singularity", "cosmological model", "non-perturbative quantization", "scalar field" ]
1707.04966	From hadrons to quarks in neutron stars: a review	We review the equation of state of matter in neutron stars from the solid crust through the liquid nuclear matter interior to the quark regime at higher densities. We focus in detail on the question of how quark matter appears in neutron stars, and how it affects the equation of state. After discussing the crust and li...	[ "quark", "neutron star", "dense matter" ]
1304.1961	Quintessence: A Review	Quintessence is a canonical scalar field introduced to explain the late-time cosmic acceleration. The cosmological dynamics of quintessence is reviewed, paying particular attention to the evolution of the dark energy equation of state w. For the field potentials having tracking and thawing properties, the evolution of ...	[ "dark energy", "field potential", "quintessence", "alternative", "accelerated expansion" ]
1201.6434	Statistical Anisotropy from Anisotropic Inflation	We review an inflationary scenario with the anisotropic expansion rate. An anisotropic inflationary universe can be realized by a vector field coupled with an inflaton, which can be regarded as a counter example to the cosmic no-hair conjecture. We show generality of anisotropic inflation and derive a universal propert...	[ "anisotropic inflation", "primordial fluctuation", "statistical anisotropy", "scalar field" ]
1305.4939	Review of asymmetric dark matter	Asymmetric dark matter models are based on the hypothesis that the present-day abundance of dark matter has the same origin as the abundance of ordinary or visible matter: an asymmetry in the number densities of particles and antiparticles. They are largely motivated by the observed similarity in the mass densities of ...	[ "dark matter", "dark sector", "matter particle" ]
1304.4840	Essential Building Blocks of Dark Energy	We propose a minimal description of single field dark energy/modified gravity within the effective field theory formalism for cosmological perturbations, which encompasses most existing models. We start from a generic Lagrangian given as an arbitrary function of the lapse and of the extrinsic and intrinsic curvature te...	[ "dark energy", "cosmological perturbation", "lagrangian" ]
1204.6135	Revisit of the Interaction between Holographic Dark Energy and Dark Matter	In this paper we investigate the possible direct, non-gravitational interaction between holographic dark energy (HDE) and dark matter. Firstly, we start with two simple models with the interaction terms Q ∝ρ_dm and Q ∝ρ_de, and then we move on to the general form Q ∝ρ_m^αρ_de^β. The cosmological constraints of the mode...	[ "holographic dark energy", "dark matter", "non-gravitational coupling" ]
0902.4465	Power-counting and the Validity of the Classical Approximation During Inflation	We use the power-counting formalism of effective field theory to study the size of loop corrections in theories of slow-roll inflation, with the aim of more precisely identifying the limits of validity of the usual classical inflationary treatments. We keep our analysis as general as possible in order to systematically...	[ "validity", "unitarity", "higgs inflation", "non-minimal coupling", "perturbative unitarity" ]
0908.2344	Composition and thermodynamics of nuclear matter with light clusters	We investigate nuclear matter at finite temperature and density, including the formation of light clusters up to the alpha particle The novel feature of this work is to include the formation of clusters as well as their dissolution due to medium effects in a systematic way using two many-body theories: a microscopic qu...	[ "nuclear matter", "light cluster", "nucleon", "supernova matter" ]
1110.1049	Metric-Palatini gravity unifying local constraints and late-time cosmic acceleration	We present a novel approach to modified theories of gravity that consists of adding to the Einstein-Hilbert Lagrangian an f(R) term constructed a la Palatini. Using the respective dynamically equivalent scalar-tensor representation, we show that the theory can pass the Solar System observational constraints even if the...	[ "gravity", "late-time cosmic acceleration", "metric einstein-hilbert lagrangian", "hybrid metric-palatini theory" ]
0909.0169	Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy	We show that intermediate mass black holes conjectured to be the early precursors of supermassive black holes and surrounded by relic cold dark matter density spikes can act as particle accelerators with collisions, in principle, at arbitrarily high centre of mass energies in the case of Kerr black holes. While the eje...	[ "black hole", "high energy", "mass frame", "extremal kerr", "particle collision" ]
1404.5954	The IR-resummed Effective Field Theory of Large Scale Structures	We present a new method to resum the effect of large scale motions in the Effective Field Theory of Large Scale Structures. Because the linear power spectrum in ΛCDM is not scale free the effects of the large scale flows are enhanced. Although previous EFT calculations of the equal-time density power spectrum at one an...	[ "effective field theory", "large scale structures", "matter power spectrum", "three-loop order", "ir-resummation" ]
0912.5297	New cosmological constraints on primordial black holes	We update the constraints on the fraction of the Universe going into primordial black holes in the mass range 10^9–10^17 g associated with the effects of their evaporations on big bang nucleosynthesis and the extragalactic photon background. We include for the first time all the effects of quark and gluon emission by b...	[ "cosmological constraint", "primordial black hole", "extragalactic photon background", "early universe", "certain mass range" ]
1311.0029	Dark Sectors and New, Light, Weakly-Coupled Particles	Dark sectors, consisting of new, light, weakly-coupled particles that do not interact with the known strong, weak, or electromagnetic forces, are a particularly compelling possibility for new physics. Nature may contain numerous dark sectors, each with their own beautiful structure, distinct particles, and forces. This...	[ "particle", "dark matter", "axion-like particle", "dark sector", "boson" ]
1603.05234	The clustering of massive Primordial Black Holes as Dark Matter: measuring their mass distribution with Advanced LIGO	The recent detection by Advanced LIGO of gravitational waves (GW) from the merging of a binary black hole system sets new limits on the merging rates of massive primordial black holes (PBH) that could be a significant fraction or even the totality of the dark matter in the Universe. aLIGO opens the way to the determina...	[ "black hole", "dark matter", "mass distribution", "universe", "gas accretion" ]
1005.3039	Einstein's Other Gravity and the Acceleration of the Universe	Spacetime curvature plays the primary role in general relativity but Einstein later considered a theory where torsion was the central quantity. Just as the Einstein-Hilbert action in the Ricci curvature scalar R can be generalized to f(R) gravity, we consider extensions of teleparallel, or torsion scalar T, gravity to ...	[ "gravity", "einstein", "dark energy", "late-time acceleration", "various cosmological solution" ]
1509.08458	Breaking a Dark Degeneracy with Gravitational Waves	We identify a scalar-tensor model embedded in the Horndeski action whose cosmological background and linear scalar fluctuations are degenerate with the concordance cosmology. The model admits a self-accelerated background expansion at late times that is stable against perturbations with a sound speed attributed to the ...	[ "dark degeneracy", "gravitational wave", "horndeski theory", "scalar-tensor theory", "gws" ]
0911.4771	Magnetic fields in the early universe	We give a pedagogical introduction to two aspects of magnetic fields in the early universe. We first focus on how to formulate electrodynamics in curved space time, defining appropriate magnetic and electric fields and writing Maxwell equations in terms of these fields. We then specialize to the case of magnetohydrodyn...	[ "universe", "magnetic field", "conformal invariance", "primordial magnetic field" ]
1302.0223	Galilean invariance and the consistency relation for the nonlinear squeezed bispectrum of large scale structure	We discuss the constraints imposed on the nonlinear evolution of the Large Scale Structure (LSS) of the universe by galilean invariance, the symmetry relevant on subhorizon scales. Using Ward identities associated to the invariance, we derive fully nonlinear consistency relations between statistical correlators of the ...	[ "consistency relation", "galilean invariance", "-correlator function", "soft limit", "dark matter fluid" ]
0902.1761	Detection of Extrasolar Planets by Gravitational Microlensing	Gravitational microlensing provides a unique window on the properties and prevalence of extrasolar planetary systems because of its ability to find low-mass planets at separations of a few AU. The early evidence from microlensing indicates that the most common type of exoplanet yet detected are the so-called "super-Ear...	[ "extrasolar planet", "planet", "gravitational microlensing" ]
1307.4738	Development of a Relic Neutrino Detection Experiment at PTOLEMY: Princeton Tritium Observatory for Light, Early-Universe, Massive-Neutrino Yield	The PTOLEMY experiment (Princeton Tritium Observatory for Light, Early-Universe, Massive-Neutrino Yield) aims to achieve the sensitivity required to detect the relic neutrino background through a combination of a large area surface-deposition tritium target, MAC-E filter methods, cryogenic calorimetry, and RF tracking ...	[ "neutrino", "princeton tritium observatory", "massive-neutrino yield" ]
1505.06668	Effective Theory of Large-Scale Structure with Primordial Non-Gaussianity	We develop the effective theory of large-scale structure for non-Gaussian initial conditions. The effective stress tensor in the dark matter equations of motion contains new operators, which originate from the squeezed limit of the primordial bispectrum. Parameterizing the squeezed limit by a scaling and an angular dep...	[ "large-scale structure", "primordial non-gaussianity", "effective theory" ]
1705.11098	Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution	We systematically review some standard issues and also the latest developments of modified gravity in cosmology, emphasizing on inflation, bouncing cosmology and late-time acceleration era. Particularly, we present the formalism of standard modified gravity theory representatives, like F(R), F(𝒢) and F(T) gravity theo...	[ "gravity", "late-time evolution", "cosmology", "inflationary era", "dark energy" ]
1108.4136	Sterile neutrinos with eV masses in cosmology – how disfavoured exactly?	We study cosmological models that contain sterile neutrinos with eV-range masses as suggested by reactor and short-baseline oscillation data. We confront these models with both precision cosmological data (probing the CMB decoupling epoch) and light-element abundances (probing the BBN epoch). In the minimal LambdaCDM m...	[ "cosmology", "sterile neutrino", "cosmological observation" ]
1903.11584	The origin of Galactic cosmic rays: challenges to the standard paradigm	A critical review of the standard paradigm for the origin of Galactic cosmic rays is presented. Recent measurements of local and far-away cosmic rays reveal unexpected behaviours, which challenge the commonly accepted scenario. These recent findings are discussed, together with long-standing open issues. Despite the pr...	[ "galactic", "cosmic ray", "diffusive shock acceleration" ]
1702.04189	Weighing neutrinos in the scenario of vacuum energy interacting with cold dark matter: application of the parameterized post-Friedmann approach	We constrain the neutrino mass in the scenario of vacuum energy interacting with cold dark matter by using current cosmological observations. To avoid the large-scale instability problem in interacting dark energy models, we employ the parameterized post-Friedmann (PPF) approach to do the calculation of perturbation ev...	[ "neutrino", "vacuum energy", "dark matter" ]
1501.06570	Superradiance – the 2020 Edition	Superradiance is a radiation enhancement process that involves dissipative systems. With a 60 year-old history, superradiance has played a prominent role in optics, quantum mechanics and especially in relativity and astrophysics. In General Relativity, black-hole superradiance is permitted by the ergoregion, that allow...	[ "angular momentum", "superradiance", "phenomenon", "superradiant instability", "kerr" ]
2004.04740	Dark matter and dark radiation from evaporating primordial black holes	Primordial black holes in the mass range from 10^-5 to 10^9 g might have existed in the early universe. Via their evaporation mechanism (completed before Big Bang Nucleosynthesis), they might have released stable particles beyond the Standard Model. We reconsider the possibility that such particles might constitute the...	[ "dark radiation", "black hole", "dark matter" ]
0912.0384	Gravitational waves from neutron stars: Promises and challenges	We discuss different ways that neutron stars can generate gravitational waves, describe recent improvements in modelling the relevant scenarios in the context of improving detector sensitivity, and show how observations are beginning to test our understanding of fundamental physics. The main purpose of the discussion i...	[ "neutron star", "gravitational wave", "nuclear matter" ]
1812.00674	Gravitational waves induced by scalar perturbations as probes of the small-scale primordial spectrum	Compared to primordial perturbations on large scales, roughly larger than 1 megaparsec, those on smaller scales are not severely constrained. We revisit the issue of probing small-scale primordial perturbations using gravitational waves (GWs), based on the fact that, when large-amplitude primordial perturbations on sma...	[ "scalar perturbation", "small-scale primordial spectrum", "primordial black hole" ]
1503.01136	Combining high-dispersion spectroscopy (HDS) with high contrast imaging (HCI): Probing rocky planets around our nearest neighbors	Aims: In this work, we discuss a way to combine High Dispersion Spectroscopy and High Contrast Imaging (HDS+HCI). For a planet located at a resolvable angular distance from its host star, the starlight can be reduced up to several orders of magnitude using adaptive optics and/or coronography. In addition, the remaining...	[ "high-dispersion spectroscopy", "high contrast imaging", "planet" ]
1206.0267	The Epoch of Reionization	The Universe's dark ages end with the formation of the first generation of galaxies. These objects start emitting ultraviolet radiation that carves out ionized regions around them. After a sufficient number of ionizing sources have formed, the ionized fraction of the gas in the Universe rapidly increases until hydrogen...	[ "epoch", "reionization", "neutral hydrogen" ]
2010.00593	Static response and Love numbers of Schwarzschild black holes	We derive the quadratic action for the physical degrees of freedom of massless spin-0, spin-1, and spin-2 perturbations on a Schwarzschild–(A)dS background in arbitrary dimensions. We then use these results to compute the static response of asymptotically flat Schwarzschild black holes to external fields. Our analysis ...	[ "response", "schwarzschild", "black hole" ]
1110.0462	The Cosmic Origins Spectrograph	The Cosmic Origins Spectrograph (COS) is a moderate-resolution spectrograph with unprecedented sensitivity that was installed into the Hubble Space Telescope (HST) in May 2009, during HST Servicing Mission 4 (STS-125). We present the design philosophy and summarize the key characteristics of the instrument that will be...	[ "cosmic origins spectrograph", "hst", "instrument" ]
1006.1769	Eddington's theory of gravity and its progeny	We resurrect Eddington's proposal for the gravitational action in the presence of a cosmological constant and extend it to include matter fields. We show that the Newton-Poisson equation is modified in the presence of sources and that charged black holes show great similarities with those arising in Born-Infeld electro...	[ "gravity", "cosmology", "space-time", "eddington", "big bang singularity" ]
1109.6324	Black holes in scalar-tensor gravity	Hawking has proven that black holes which are stationary as the endpoint of gravitational collapse in Brans–Dicke theory (without a potential) are no different than in general relativity. We extend this proof to the much more general class of scalar-tensor and f(R) gravity theories, without assuming any symmetries apar...	[ "gravity", "black hole", "scalar-tensor theory", "no-hair theorem", "minimal coupling" ]
0904.2835	Matter Bounce in Horava-Lifshitz Cosmology	Horava-Lifshitz gravity, a recent proposal for a UV-complete renormalizable gravity theory, may lead to a bouncing cosmology. In this note we argue that Horava-Lifshitz cosmology may yield a concrete realization of the matter bounce scenario, and thus give rise to an alternative to inflation for producing a scale-invar...	[ "cosmology", "horava-lifshitz gravity", "matter bounce scenario" ]
1308.2911	Test of consistency between Planck and WMAP	Within the context of the concordance model of cosmology we test the consistency of the angular power spectrum data from WMAP and Planck looking for possible systematics. The best fit concordance model to each observation is used as a mean function along with a Crossing function with an orthogonal basis to fit the data...	[ "consistency", "planck", "wmap" ]
2101.11735	Wave Dark Matter	We review the physics and phenomenology of wave dark matter: a bosonic dark matter candidate lighter than about 30 eV. Such particles have a de Broglie wavelength exceeding the average inter-particle separation in a galaxy like the Milky Way, and are well described as classical waves. We outline the particle physics mo...	[ "dark matter", "axion", "fuzzy dark matter", "wave nature" ]
1004.3294	Cosmological Tests of Gravity	Modifications of general relativity provide an alternative explanation to dark energy for the observed acceleration of the universe. We review recent developments in modified gravity theories, focusing on higher dimensional approaches and chameleon/f(R) theories. We classify these models in terms of the screening mecha...	[ "gravity", "dark energy", "dark matter", "large scale", "cosmology" ]
1707.09578	Primordial black holes and second order gravitational waves from ultra-slow-roll inflation	The next generation of space-borne gravitational wave detectors may detect gravitational waves from extreme mass-ratio inspirals with primordial black holes. To produce primordial black holes which contribute a non-negligible abundance of dark matter and are consistent with the observations, a large enhancement in the ...	[ "gravitational wave", "ultra-slow-roll inflation", "primordial black hole" ]
1709.09066	Line-Intensity Mapping: 2017 Status Report	Following the first two annual intensity mapping workshops at Stanford in March 2016 and Johns Hopkins in June 2017, we report on the recent advances in theory, instrumentation and observation that were presented in these meetings and some of the opportunities and challenges that were identified looking forward. With p...	[ "galaxy", "line-intensity mapping", "volume", "spectral line", "spatial fluctuation" ]
1104.2669	f(R,T) gravity	We consider f(R,T) modified theories of gravity, where the gravitational Lagrangian is given by an arbitrary function of the Ricci scalar R and of the trace of the stress-energy tensor T. We obtain the gravitational field equations in the metric formalism, as well as the equations of motion for test particles, which fo...	[ "gravity", "trace", "tensor", "generalization", "geometry-matter coupling" ]
1205.3365	Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)	This article aims at discussing the cosmological constant problem at a pedagogical but fully technical level. We review how the vacuum energy can be regularized in flat and curved space-time and how it can be understood in terms of Feynman bubble diagrams. In particular, we show that the properly renormalized value of ...	[ "cosmological constant problem", "quantum field theory", "universe", "vacuum energy density", "supersymmetry" ]
1106.3312	Cosmology of the Galileon from Massive Gravity	We covariantize the decoupling limit of massive gravity proposed in arXiv:1011.1232 and study the cosmology of this theory as a proxy, which embodies key features of the fully non-linear covariant theory. We first confirm that it exhibits a self-accelerating solution, similar to what has been found in arXiv:1010.1780, ...	[ "massive gravity", "scalar-tensor theory", "galileon theory" ]
1204.2832	Reconstruction of dark energy and expansion dynamics using Gaussian processes	An important issue in cosmology is reconstructing the effective dark energy equation of state directly from observations. With few physically motivated models, future dark energy studies cannot only be based on constraining a dark energy parameter space, as the errors found depend strongly on the parameterisation consi...	[ "dark energy", "expansion dynamic", "gaussian process", "cosmology", "gapp" ]
1509.03884	Testing black hole candidates with electromagnetic radiation	Astrophysical black hole candidates are thought to be the Kerr black holes of general relativity, but there is not yet direct observational evidence that the spacetime geometry around these objects is described by the Kerr solution. The study of the properties of the electromagnetic radiation emitted by gas or stars or...	[ "black hole candidate", "radiation", "gravity", "accretion disk", "astrophysical data" ]
1007.0443	Generalization of the Fierz-Pauli Action	We consider the Lagrangian of gravity covariantly amended by the mass and polynomial interaction terms with arbitrary coefficients, and reinvestigate the consistency of such a theory in the decoupling limit, up to the fifth order in the nonlinearities. We calculate explicitly the self-interactions of the helicity-0 mod...	[ "fierz-pauli action", "gravity", "generalization", "gabadadze", "tolley" ]
1003.5751	Dust of Dark Energy	We introduce a novel class of field theories where energy always flows along timelike geodesics, mimicking in that respect dust, yet which possess non-zero pressure. This theory comprises two scalar fields, one of which is a Lagrange multiplier enforcing a constraint between the other's field value and derivative. We s...	[ "dark energy", "scalar field", "dark matter" ]
1610.08981	One Law To Rule Them All: The Radial Acceleration Relation of Galaxies	We study the link between baryons and dark matter in 240 galaxies with spatially resolved kinematic data. Our sample spans 9 dex in stellar mass and includes all morphological types. We consider (i) 153 late-type galaxies (LTGs; spirals and irregulars) with gas rotation curves from the SPARC database; (ii) 25 early-typ...	[ "radial acceleration relation", "galaxy", "tight correlation" ]
1012.5313	Determination of intergalactic magnetic fields from gamma ray data	We report a measurement of intergalactic magnetic fields using combined data from Atmospheric Cherenkov Telescopes and Fermi Gamma-Ray Space Telescope, based on the spectral data alone. If blazars are assumed to produce both gamma rays and cosmic rays, the observed spectra are not sensitive to the intrinsic spectrum of...	[ "intergalactic magnetic field", "magnetic field", "cosmic ray", "multi-frequency blazar observation" ]
1611.06130	Inflationary primordial black holes for the LIGO gravitational wave events and pulsar timing array experiments	Primordial black holes (PBHs) are one of the candidates to explain the gravitational wave (GW) signals observed by the LIGO detectors. Among several phenomena in the early Universe, cosmic inflation is a major example to generate PBHs from large primordial density perturbations. In this paper, we discuss the possibilit...	[ "primordial black hole", "gravitational wave", "pulsar timing array", "early universe" ]
0901.1986	The WMAP cold spot	The WMAP cold spot was found by applying spherical wavelets to the first year WMAP data. An excess of kurtosis of the wavelet coefficient was observed at angular scales of around 5 degrees. This excess was shown to be inconsistent with Gaussian simulations with a p-value of around 1 (b = -57, l = 209) was shown to be t...	[ "wmap", "cold spot", "several statistical estimator" ]
1507.00744	Hypermagnetic Fields and Baryon Asymmetry from Pseudoscalar Inflation	We show that maximally helical hypermagnetic fields produced during pseudoscalar inflation can generate the observed baryon asymmetry of the universe via the B+L anomaly in the Standard Model. We find that most of the parameter space of pseudoscalar inflation that explains the cosmological data leads to baryon overprod...	[ "baryon asymmetry", "pseudoscalar inflation", "gauge field" ]
1703.05448	Lectures on the Infrared Structure of Gravity and Gauge Theory	This is a redacted transcript of a course given by the author at Harvard in spring semester 2016. It contains a pedagogical overview of recent developments connecting the subjects of soft theorems, the memory effect and asymptotic symmetries in four-dimensional QED, nonabelian gauge theory and gravity with applications...	[ "gravity", "gauge theory", "flat space" ]
1209.4661	The Extragalactic Background Light and the Gamma-ray Opacity of the Universe	The extragalactic background light (EBL) is one of the fundamental observational quantities in cosmology. All energy releases from resolved and unresolved extragalactic sources, and the light from any truly diffuse background, excluding the cosmic microwave background (CMB), contribute to its intensity and spectral ene...	[ "extragalactic background light", "universe", "redshift", "dust" ]
2102.08252	Fanaroff-Riley classification of radio galaxies using group-equivariant convolutional neural networks	Weight sharing in convolutional neural networks (CNNs) ensures that their feature maps will be translation-equivariant. However, although conventional convolutions are equivariant to translation, they are not equivariant to other isometries of the input image data, such as rotation and reflection. For the classificatio...	[ "classification", "radio galaxy", "convolutional neural network" ]
1403.3358	Gravitational collapse of Bose-Einstein condensate dark matter halos	We study the mechanisms of the gravitational collapse of the Bose-Einstein condensate dark matter halos, described by the zero temperature time-dependent nonlinear Schrödinger equation (the Gross-Pitaevskii equation), with repulsive inter-particle interactions. By using a variational approach, and by choosing an approp...	[ "dark matter halo", "gravitational collapse", "einstein condensate" ]
1506.08575	The two faces of mimetic Horndeski gravity: disformal transformations and Lagrange multiplier	We show that very general scalar-tensor theories of gravity (including, e.g., Horndeski models) are generically invariant under disformal transformations. However there is a special subset, when the transformation is not invertible, that yields new equations of motion which are a generalization of the so-called "mimeti...	[ "gravity", "disformal transformation", "lagrange" ]
1507.05326	Precision Comparison of the Power Spectrum in the EFTofLSS with Simulations	We study the prediction of the dark matter power spectrum at two-loop order in the Effective Field Theory of Large Scale Structures (EFTofLSS) using high precision numerical simulations. In our universe, short distance non-linear perturbations, not under perturbative control, affect long distance fluctuations through a...	[ "eftoflss", "simulation", "matter power spectrum", "precision comparison", "three-loop order" ]
1203.4595	Conformal consistency relations for single-field inflation	We generalize the single-field consistency relations to capture not only the leading term in the squeezed limit—going as 1/q^3, where q is the small wavevector—but also the subleading one, going as 1/q^2. This term, for an (n+1)-point function, is fixed in terms of the variation of the n-point function under a special ...	[ "single-field inflation", "single-field model", "conformal consistency relation", "inflationary correlator", "goldstone boson" ]
1011.4374	Relativistic effects and primordial non-Gaussianity in the galaxy bias	When dealing with observables, one needs to generalize the bias relation between the observed galaxy fluctuation field to the underlying matter distribution in a gauge-invariant way. We provide such relation at second-order in perturbation theory adopting the local Eulerian bias model and starting from the observationa...	[ "primordial non-gaussianity", "bias", "relativistic effect" ]
1204.2797	A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope	The observation of a gamma-ray line in the cosmic-ray fluxes would be a smoking-gun signature for dark matter annihilation or decay in the Universe. We present an improved search for such signatures in the data of the Fermi Large Area Telescope (LAT), concentrating on energies between 20 and 300 GeV. Besides updating t...	[ "gamma-ray line", "dark matter annihilation", "line emission" ]
1407.2809	Adding helicity to inflationary magnetogenesis	The most studied mechanism of inflationary magnetogenesis relies on the time-dependence of the coefficient of the gauge kinetic term F_μν F^μν. Unfortunately, only extremely finely tuned versions of the model can consistently generate the cosmological magnetic fields required by observations. We propose a generalizatio...	[ "inflationary magnetogenesis", "magnetogenesis", "axion" ]

End of preview.

YAML Metadata Warning:The task_categories "text2text-generation" is not in the official list: text-classification, token-classification, table-question-answering, question-answering, zero-shot-classification, translation, summarization, feature-extraction, text-generation, fill-mask, sentence-similarity, text-to-speech, text-to-audio, automatic-speech-recognition, audio-to-audio, audio-classification, audio-text-to-text, voice-activity-detection, depth-estimation, image-classification, object-detection, image-segmentation, text-to-image, image-to-text, image-to-image, image-to-video, unconditional-image-generation, video-classification, reinforcement-learning, robotics, tabular-classification, tabular-regression, tabular-to-text, table-to-text, multiple-choice, text-ranking, text-retrieval, time-series-forecasting, text-to-video, image-text-to-text, image-text-to-image, image-text-to-video, visual-question-answering, document-question-answering, zero-shot-image-classification, graph-ml, mask-generation, zero-shot-object-detection, text-to-3d, image-to-3d, image-feature-extraction, video-text-to-text, keypoint-detection, visual-document-retrieval, any-to-any, video-to-video, other

`silk` synthetic training samples and human-labeled test sets for domain adaptation in keyphrase generation

This dataset contains the synthetic samples generated by 🧵 silk, a method that leverages citation contexts to create synthetic samples of documents paired with silver-standard keyphrases for adapting keyphrase generation models to new domains. We applied silk on three domains: Natural Language Processing (nlp), Astrophysics (astro) and Paleontology (paleo).

This dataset also includes three human-labeled test sets to assess the performance of keyphrase generation across these domains.

Citation

If you use this dataset, please cite the following paper:

Florian Boudin and Akiko Aizawa.
Unsupervised Domain Adaptation for Keyphrase Generation using Citation Context,
Proceedings of EMNLP 2024 (Findings).

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silk synthetic training samples and human-labeled test sets for domain adaptation in keyphrase generation

Citation

`silk` synthetic training samples and human-labeled test sets for domain adaptation in keyphrase generation