Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.5k papers
- Leibniz University HannoverDE902 papers
- California Institute of TechnologyUS583 papers
- Centre National de la Recherche ScientifiqueFR534 papers
- University of BirminghamGB417 papers
- Pennsylvania State UniversityUS402 papers
- University of Maryland, College ParkUS398 papers
- Louisiana State UniversityUS394 papers
- University of Wisconsin–MilwaukeeUS390 papers
- Cardiff UniversityGB371 papers
- University of GlasgowGB367 papers
- Goddard Space Flight CenterUS340 papers
202 papers · 1 filter
Sugawara-type constraints in hyperbolic coset models
Thibault Damour, Axel Kleinschmidt, Hermann Nicolai
In the conjectured correspondence between supergravity and geodesic models on infinite-dimensional hyperbolic coset spaces, and E10/K(E10) in particular, the constraints play a cen…
Quantum noise of a Michelson-Sagnac interferometer with translucent mechanical oscillator
Kazuhiro Yamamoto, Daniel Friedrich, Tobias Westphal +5
Quantum fluctuations in the radiation pressure of light can excite stochastic motions of mechanical oscillators thereby realizing a linear quantum opto-mechanical coupling. When pe…
Encoding simplicial quantum geometry in group field theories
Daniele Oriti, Tamer Tlas
We show that a new symmetry requirement on the GFT field, in the context of an extended GFT formalism, involving both Lie algebra and group elements, leads, in 3d, to Feynman ampli…
The group field theory approach to quantum gravity: some recent results
Daniele Oriti
We introduce the key ideas behind the group field theory approach to quantum gravity, and the basic elements of its formalism. We also briefly report on some recent results obtaine…
On well-posedness, linear perturbations and mass conservation for axisymmetric Einstein equation
Sergio Dain, Omar E. Ortiz
For axially symmetric solutions of Einstein equations there exists a gauge which has the remarkable property that the total mass can be written as a conserved, positive definite, i…
Effective action for Einstein-Maxwell theory at order RF**4
Jose Manuel Davila, Christian Schubert
We use a recently derived integral representation of the one-loop effective action in Einstein-Maxwell theory for an explicit calculation of the part of the effective action contai…
Vacuum Electromagnetic Counterparts of Binary Black-Hole Mergers
Philipp Mösta, Carlos Palenzuela, Luciano Rezzolla +3
As one step towards a systematic modeling of the electromagnetic (EM) emission from an inspiralling black hole binary we consider a simple scenario in which the binary moves in a u…
Random template placement and prior information
Christian Röver
In signal detection problems, one is usually faced with the task of searching a parameter space for peaks in the likelihood function which indicate the presence of a signal. Random…
Polarized Electrogowdy spacetimes censored
Ernesto Nungesser
A sketch of the proof of strong cosmic censorship is presented for a class of solutions of the Einstein-Maxwell equations, those with polarized Gowdy symmetry. A key element of the…
Gravitational waves from neutron stars: Promises and challenges
N. Andersson, V. Ferrari, D. I. Jones +5
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…
The effects of LIGO detector noise on a 15-dimensional Markov-chain Monte-Carlo analysis of gravitational-wave signals
V. Raymond, M. V. van der Sluys, I. Mandel +3
Gravitational-wave signals from inspirals of binary compact objects (black holes and neutron stars) are primary targets of the ongoing searches by ground-based gravitational-wave (…
Neutron star tidal disruption in mixed binaries: the imprint of the equation of state
V. Ferrari, L. Gualtieri, F. Pannarale
We study the tidal disruption of neutron stars in black hole-neutron star coalescing binaries. We calculate the critical orbital separation at which the star is disrupted by the bl…
Fractal universe and quantum gravity
Gianluca Calcagni
We propose a field theory which lives in fractal spacetime and is argued to be Lorentz invariant, power-counting renormalizable, ultraviolet finite, and causal. The system flows fr…
From covariant to canonical formulations of discrete gravity
Bianca Dittrich, Philipp A Hoehn
Starting from an action for discretized gravity we derive a canonical formalism that exactly reproduces the dynamics and (broken) symmetries of the covariant formalism. For lineari…
Characteristic extraction in numerical relativity: binary black hole merger waveforms at null infinity
C. Reisswig, N. T. Bishop, D. Pollney +1
The accurate modeling of gravitational radiation is a key issue for gravitational wave astronomy. As simulation codes reach higher accuracy, systematic errors inherent in current n…
Cosmological quantum billiards
Axel Kleinschmidt, Hermann Nicolai
The mini-superspace quantization of D=11 supergravity is equivalent to the quantization of a E10/K(E10) coset space sigma model, when the latter is restricted to the E10 Cartan sub…
Ancient solutions to the Ricci flow with pinched curvature
S. Brendle, G. Huisken, C. Sinestrari
We show that any ancient solution to the Ricci flow which satisfies a suitable curvature pinching condition must have constant sectional curvature.
Ternary Hom-Nambu-Lie algebras induced by Hom-Lie algebras
Joakim Arnlind, Abdenacer Makhlouf, Sergei Silvestrov
The purpose of this paper is to investigate ternary multiplications constructed from a binary multiplication, linear twisting maps and a trace function. We provide a construction o…
Born--Oppenheimer decomposition for quantum fields on quantum spacetimes
Kristina Giesel, Johannes Tambornino, Thomas Thiemann
Quantum Field Theory on Curved Spacetime (QFT on CS) is a well established theoretical framework which intuitively should be a an extremely effective description of the quantum nat…
Stress tensor fluctuations in de Sitter spacetime
Guillem Pérez-Nadal, Albert Roura, Enric Verdaguer
The two-point function of the stress tensor operator of a quantum field in de Sitter spacetime is calculated for an arbitrary number of dimensions. We assume the field to be in the…
Numerical determination of entanglement entropy for a sphere
R. Lohmayer, H. Neuberger, A. Schwimmer +1
We apply Srednicki's regularization to extract the logarithmic term in the entanglement entropy produced by tracing out a real, massless, scalar field inside a three dimensional sp…
Triplets of supermassive black holes: Astrophysics, Gravitational Waves and Detection
Pau Amaro-Seoane, Alberto Sesana, Loren Hoffman +4
Supermassive black holes (SMBHs) found in the centers of many galaxies have been recognized to play a fundamental active role in the cosmological structure formation process. In hi…
Understanding possible electromagnetic counterparts to loud gravitational wave events: Binary black hole effects on electromagnetic fields
Carlos Palenzuela, Luis Lehner, Shin Yoshida
In addition to producing loud gravitational waves (GW), the dynamics of a binary black hole system could induce emission of electromagnetic (EM) radiation by affecting the behavior…
Tidal deformability of neutron stars with realistic equations of state and their gravitational wave signatures in binary inspiral
Tanja Hinderer, Benjamin D. Lackey, Ryan N. Lang +1
The early part of the gravitational wave signal of binary neutron star inspirals can potentially yield robust information on the nuclear equation of state. The influence of a star'…