14.2k citations
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
147 papers · 1 filter
Hyperboloidal foliations with scri-fixing in spherical symmetry
Anil Zenginoglu, Sascha Husa
We study in spherical symmetry the conformal compactification for hyperboloidal foliations with nonvanishing constant mean curvature. The conformal factor and the coordinates are c…
Spectral Analysis of the Volume Operator in Loop Quantum Gravity
J. Brunnemann, D. Rideout
We describe preliminary results of a detailed numerical analysis of the volume operator as formulated by Ashtekar and Lewandowski. Due to a simplified explicit expression for its m…
Multi-Dimensional Explorations in Supernova Theory
Adam Burrows, Luc Dessart, Christian D. Ott +1
In this paper, we bring together various of our published and unpublished findings from our recent 2D multi-group, flux-limited radiation hydrodynamic simulations of the collapse a…
Geometry for the accelerating universe
Raffaele Punzi, Frederic P. Schuller, Mattias N. R. Wohlfarth
The Lorentzian spacetime metric is replaced by an area metric which naturally emerges as a generalized geometry in quantum string and gauge theory. Employing the area metric curvat…
Constraint-preserving Sommerfeld conditions for the harmonic Einstein equations
M. C. Babiuc, H-O. Kreiss, Jeffrey Winicour
The principle part of Einstein equations in the harmonic gauge consists of a constrained system of 10 curved space wave equations for the components of the space-time metric. A new…
Extracting Information about EMRIs using Time-Frequency Methods
Linqing Wen, Yanbei Chen, Jonathan Gair
The inspirals of stellar-mass compact objects into supermassive black holes are some of the most exciting sources of gravitational waves for LISA. Detection of these sources using…
An all-optical trap for a gram-scale mirror
T. Corbitt, Y. Chen, H. Mueller-Ebhardt +7
We report on a stable optical trap suitable for a macroscopic mirror, wherein the dynamics of the mirror are fully dominated by radiation pressure. The technique employs two freque…
The Zamolodchikov-Faddeev Algebra for AdS_5 x S^5 Superstring
Gleb Arutyunov, Sergey Frolov, Marija Zamaklar
We discuss the Zamolodchikov-Faddeev algebra for the superstring sigma-model on AdS_5 x S^5. We find the canonical su(2|2)^2 invariant S-matrix satisfying the standard Yang-Baxter…
Glueballs vs. Gluinoballs: Fluctuation Spectra in Non-AdS/Non-CFT
Marcus Berg, Michael Haack, Wolfgang Muck
Building on earlier results on holographic bulk dynamics in confining gauge theories, we compute the spin-0 and spin-2 spectra of gauge theories dual to the non-singular Maldacena-…
Conformal Symmetry and the Standard Model
Krzysztof A. Meissner, Hermann Nicolai
We re-examine the question of radiative symmetry breaking in the standard model in the presence of right-chiral neutrinos and a minimally enlarged scalar sector. We demonstrate tha…
Celestial mechanics of elastic bodies
Robert Beig, Bernd G. Schmidt
We construct time independent configurations of two gravitating elastic bodies. These configurations either correspond to the two bodies moving in a circular orbit around their cen…
An explicit harmonic code for black-hole evolution using excision
Bela Szilagyi, Denis Pollney, Luciano Rezzolla +2
We describe an explicit in time, finite-difference code designed to simulate black holes by using the excision method. The code is based upon the harmonic formulation of the Einste…
Gravitational waves from Extreme Mass Ratio Inspirals in non-pure Kerr spacetimes
Enrico Barausse, Luciano Rezzolla, David Petroff +1
To investigate the imprint on the gravitational-wave emission from extreme mass-ratio inspirals in non-pure Kerr spacetimes, we have studied the ``kludge'' waveforms generated in h…
Binary black hole late inspiral: Simulations for gravitational wave observations
John G. Baker, Sean T. McWilliams, James R. van Meter +4
Coalescing binary black hole mergers are expected to be the strongest gravitational wave sources for ground-based interferometers, such as the LIGO, VIRGO, and GEO600, as well as t…
Multi-Domain Spectral Method for Initial Data of Arbitrary Binaries in General Relativity
Marcus Ansorg
We present a multi-domain spectral method to compute initial data of binary systems in General Relativity. By utilizing adapted conformal coordinates, the vacuum region exterior to…
Spin Flips and Precession in Black-Hole-Binary Mergers
Manuela Campanelli, Carlos O. Lousto, Yosef Zlochower +2
We use the `moving puncture' approach to perform fully non-linear evolutions of spinning quasi-circular black-hole binaries with individual spins not aligned with the orbital angul…
Helically symmetric N-particle solutions in scalar gravity
Robert Beig, J. Mark Heinzle, Bernd G. Schmidt
Within a scalar model theory of gravity, where the interaction between particles is given by the half-retarded + half-advanced solution of the scalar wave equation, we consider an…
Rotating Collapse of Stellar Iron Cores in General Relativity
Christian D. Ott, Harald Dimmelmeier, Andreas Marek +4
We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and…
Accelerated expansion by non-minimally coupled scalar fields
Roger Bieli
In a class of spatially homogeneous cosmologies including those of Bianchi type I--VIII mathematical results are presented which show that a scalar field non-minimally coupled to t…
Numerical calculations near spatial infinity
Anil Zenginoglu
After describing in short some problems and methods regarding the smoothness of null infinity for isolated systems, I present numerical calculations in which both spatial and null…
Late-time oscillatory behaviour for self-gravitating scalar fields
Alan D. Rendall
This paper investigates the late-time behaviour of certain cosmological models where oscillations play an essential role. Rigorous results are proved on the asymptotics of homogene…
Generalized connected sum construction for scalar flat metrics
Lorenzo Mazzieri
In this paper we will show that the generalized connected sum construction for constant scalar curvature metrics can be extended to the zero scalar curvature case. In particular we…
Effective constraints of loop quantum gravity
Martin Bojowald, Hector Hernandez, Mikhail Kagan +1
Within a perturbative cosmological regime of loop quantum gravity corrections to effective constraints are computed. This takes into account all inhomogeneous degrees of freedom re…
Formation and Evolution of Structure in Loop Cosmology
Martin Bojowald, Hector Hernandez, Mikhail Kagan +2
Inhomogeneous cosmological perturbation equations are derived in loop quantum gravity, taking into account corrections in particular in gravitational parts. This provides a framewo…