742 citations · 5.6k across the 82 of their papers we have counts for
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The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Tidal Love numbers and quasi-normal modes of the Schwarzschild-Hernquist black hole
Sumanta Chakraborty, Geoffrey Compère, Ludovico Machet
We derive the model of the Schwarzschild black hole immersed into a dark matter halo with a relativistic Hernquist profile, the Schwarzschild-Hernquist black hole, and obtain its t…
Approach to the separatrix with eccentric orbits
Guillaume Lhost, Geoffrey Compère
Eccentric binary compact mergers are prime targets of current and future gravitational wave observatories. In the small mass ratio expansion, post-adiabatic inspirals have been mod…
Self-force framework for transition-to-plunge waveforms
Lorenzo Küchler, Geoffrey Compère, Leanne Durkan +1
Compact binaries with asymmetric mass ratios are key expected sources for next-generation gravitational wave detectors. Gravitational self-force theory has been successful in produ…
Quadrupolar radiation in de Sitter: Displacement memory and Bondi metric
Geoffrey Compère, Sk Jahanur Hoque, Emine Şeyma Kutluk
We obtain the closed form expression for the metric perturbation around de Sitter spacetime generated by a matter source below Hubble scale both in generalized harmonic gauge and i…
An asymptotic framework for gravitational scattering
Geoffrey Compère, Samuel E. Gralla, Hongji Wei
Asymptotically flat spacetimes have been studied in five separate regions: future/past timelike infinity , future/past null infinity , and spatial infinity…
Multipole expansion of gravitational waves: memory effects and Bondi aspects
Luc Blanchet, Geoffrey Compère, Guillaume Faye +2
In our previous work, we proposed an algorithm to transform the metric of an isolated matter source in the multipolar post-Minkowskian approximation in harmonic (de Donder) gauge t…
Generalized Carter constant for quadrupolar test bodies in Kerr spacetime
Geoffrey Compère, Adrien Druart, Justin Vines
We establish the existence of a deformation of the usual Carter constant which is conserved along the motion in a fixed Kerr background of a spinning test body possessing the spin-…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
Asymptotically matched quasi-circular inspiral and transition-to-plunge in the small mass ratio expansion
Geoffrey Compère, Lorenzo Küchler
In the small mass ratio expansion and on the equatorial plane, the two-body problem for point particles in general relativity admits a quasi-circular inspiral motion followed by a…
Classification of radial Kerr geodesic motion
Geoffrey Compère, Yan Liu, Jiang Long
We classify radial timelike geodesic motion of the exterior non-extremal Kerr spacetime by performing a taxonomy of inequivalent root structures of the first order radial geodesic…
Complete set of quasi-conserved quantities for spinning particles around Kerr
Geoffrey Compère, Adrien Druart
We revisit the conserved quantities of the Mathisson-Papapetrou-Tulczyjew equations describing the motion of spinning particles on a fixed background. Assuming Ricci-flatness and t…
Classical and Quantized General-Relativistic Angular Momentum
Geoffrey Compère, David A. Nichols
Angular momentum at null infinity has a supertranslation ambiguity from the lack of a preferred Poincaré group and a similar ambiguity when the center-of-mass position changes as l…
Self-consistent adiabatic inspiral and transition motion
Geoffrey Compère, Lorenzo Küchler
The transition motion of a point particle around the last stable orbit of Kerr is described at leading order in the transition-timescale expansion. Taking systematically into accou…
Multipole Expansion of Gravitational Waves: from Harmonic to Bondi coordinates
Luc Blanchet, Geoffrey Compère, Guillaume Faye +2
We transform the metric of an isolated matter source in the multipolar post-Minkowskian approximation from harmonic (de Donder) coordinates to radiative Newman-Unti (NU) coordinate…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Near-horizon geodesics of high-spin black holes
Geoffrey Compère, Adrien Druart
We provide an exhaustive and illustrated classification of timelike and null geodesics in the near-horizon region of near-extremal Kerr black holes. The classification of polar mot…
The Poincaré and BMS flux-balance laws with application to binary systems
Geoffrey Compère, Roberto Oliveri, Ali Seraj
Asymptotically flat spacetimes admit both supertranslations and Lorentz transformations as asymptotic symmetries. Furthermore, they admit super-Lorentz transformations, namely supe…
Scalar Self-force for High Spin Black Holes
Geoffrey Compère, Kwinten Fransen, Thomas Hertog +1
We semianalytically investigate the scalar self-force experienced in the final stages of extreme mass ratio inspirals of nonspinning scalar particles into supermassive nearly extre…
Transition from inspiral to plunge into a highly spinning black hole
Geoffrey Compère, Kwinten Fransen, Caroline Jonas
We extend the Ori-Thorne-Kesden procedure to consistently describe the non-quasi-circular transition around the ISCO from inspiral to plunge into a black hole of arbitrary spin, in…
Infinite towers of supertranslation and superrotation memories
Geoffrey Compère
A framework that structures the gravitational memory effects and which is consistent with gravitational electric-magnetic duality is presented. A correspondence is described betwee…
Are quantum corrections on horizon scale physically motivated?
Geoffrey Compère
The aim of this short review is to give an overview to non-specialists of recent arguments from fundamental physics in favor and disfavor of quantum corrections to black hole horiz…
Spin and Quadrupole Couplings for High Spin Equatorial Intermediate Mass-ratio Coalescences
Bin Chen, Geoffrey Compère, Yan Liu +2
Intermediate mass-ratio coalescences are potential signals of ground-based and space-based gravitational observatories. Accurate modeling of their waveforms within general relativi…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…