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
30 papers · 1 filter
Field Theory Questions for String Theory Answers
O. Aharony, C. Sonnenschein, S. Yankielowicz +1
We discuss the field theory of 3-brane probes in F-theory compactifications in two configurations, generalizing the work of Sen and of Banks, Douglas and Seiberg. One configuration…
Asymptotically Hyperbolic Non Constant Mean Curvature Solutions of the Einstein Constraint Equations
James Isenberg, Jiseong Park
We describe how the iterative technique used by Isenberg and Moncrief to verify the existence of large sets of non constant mean curvature solutions of the Einstein constraints on…
Large Angular Scale CMB Anisotropy Induced by Cosmic Strings
B. Allen, R. R. Caldwell, E. P. S. Shellard +2
We simulate the anisotropy in the cosmic microwave background (CMB) induced by cosmic strings. By numerically evolving a network of cosmic strings we generate full-sky CMB temperat…
Newtonian Cosmology in Lagrangian Formulation: Foundations and Perturbation Theory
Juergen Ehlers, Thomas Buchert
The ``Newtonian'' theory of spatially unbounded, self--gravitating, pressureless continua in Lagrangian form is reconsidered. Following a review of the pertinent kinematics, we pre…
Finding Apparent Horizons in Dynamic 3D Numerical Spacetimes
P. Anninos, K. Camarda, J. Libson +3
We have developed a general method for finding apparent horizons in 3D numerical relativity. Instead of solving for the partial differential equation describing the location of the…
The collision of boosted black holes
John Baker, Andrew Abrahams, Peter Anninos +4
We study the radiation from a collision of black holes with equal and opposite linear momenta. Results are presented from a full numerical relativity treatment and are compared wit…
Adaptive mesh and geodesically sliced Schwarzschild spacetime in 3+1 dimensions
Bernd Bruegmann
We present first results obtained with a 3+1 dimensional adaptive mesh code in numerical general relativity. The adaptive mesh is used in conjunction with a standard ADM code for t…
Existence and non-existence results for global constant mean curvature foliations
Alan D. Rendall
The main result of this paper is a proof that there are examples of spatially compact solutions of the Einstein-dust equations which only exist for an arbitrarily small amount of C…
Asymptotic Structure of Symmetry Reduced General Relativity
Abhay Ashtekar, Jiri Bicak, Bernd G. Schmidt
Gravitational waves with a space-translation Killing field are considered. In this case, the 4-dimensional Einstein vacuum equations are equivalent to the 3-dimensional Einstein eq…
Behavior of Einstein-Rosen Waves at Null Infinity
Abhay Ashtekar, Jiri Bicak, Bernd G. Schmidt
The asymptotic behavior of Einstein-Rosen waves at null infinity in 4 dimensions is investigated in {\it all} directions by exploiting the relation between the 4-dimensional space-…
An Affine String Vertex Operator Construction at Arbitrary Level
R. W. Gebert, H. Nicolai
An affine vertex operator construction at arbitrary level is presented which is based on a completely compactified chiral bosonic string whose momentum lattice is taken to be the (…
The two-phase issue in the O(n) non-linear -model: A Monte Carlo study
B. Alles, A. Buonanno, G. Cella
We have performed a high statistics Monte Carlo simulation to investigate whether the two-dimensional O(n) non-linear sigma models are asymptotically free or they show a Kosterlitz…
Gravitational Wave Detector Sites
Bruce Allen
Locations and orientations of current and proposed laser-interferometric gravitational wave detectors are given in tabular form.
Detection of Anisotropies in the Gravitational-Wave Stochastic Background
Bruce Allen, Adrian C. Ottewill
By correlating the signals from a pair of gravitational-wave detectors, one can undertake sensitive searches for a stochastic background of gravitational radiation. If the stochast…
Quantum Spin Dynamics (QSD) II
T. Thiemann
We continue here the analysis of the previous paper of the Wheeler-DeWitt constraint operator for four-dimensional, Lorentzian, non-perturbative, canonical vacuum quantum gravity i…
Quantum Spin Dynamics (QSD)
T. Thiemann
An anomaly-free operator corresponding to the Wheeler-DeWitt constraint of Lorentzian, four-dimensional, canonical, non-perturbative vacuum gravity is constructed in the continuum.…
Constant mean curvature foliations in cosmological spacetimes
Alan D. Rendall
Foliations by constant mean curvature hypersurfaces provide a possibility of defining a preferred time coordinate in general relativity. In the following various conjectures are ma…
Non-Perturbative Properties of Heterotic String Vacua Compactified on
J. Louis, J. Sonnenschein, S. Theisen +1
Using the heterotic--type II duality of string vacua in four space-time dimensions we study non-perturbative couplings of toroidally compactified six-dimensional heterotic va…
Spectrum of relic gravitational waves in string cosmology
A. Buonanno, M. Maggiore, C. Ungarelli
We compute the spectrum of relic gravitons in a model of string cosmology. In the low- and in the high-frequency limits we reproduce known results. The full spectrum, however, also…
Higher-Derivative Gravity in String Theory
Kristin Forger, Burt A. Ovrut, Stefan J. Theisen +1
We explicitly extract the structure of higher-derivative curvature-squared terms at genus 0 and 1 in the d=4 heterotic string effective action compactified on symmetric orbifolds b…
Isomonodromic Quantization of Dimensionally Reduced Gravity
D. Korotkin, H. Nicolai
We present a detailed account of the isomonodromic quantization of dimensionally reduced Einstein gravity with two commuting Killing vectors. This theory constitutes an integrable…
Closed formula for Wilson loops for Quantum Yang-Mills Theory in two dimensions
Abhay Ashtekar, Jurek Lewandowski, Donald Marolf +2
A closed expression of the Euclidean Wilson-loop functionals is derived for pure Yang-Mills continuum theories with gauge groups and and space-time topologies $\Rl^1…
Existence of constant mean curvature foliations in spacetimes with two-dimensional local symmetry
Alan D. Rendall
It is shown that in a class of maximal globally hyperbolic spacetimes admitting two local Killing vectors, the past (defined with respect to an appropriate time orientation) of any…
The stochastic gravity-wave background: sources and detection
Bruce Allen
A world-wide effort is now underway to build gravitational wave detectors based on highly-sensitive laser interferometers. When data from detectors at different sites is properly c…