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
107 papers · 1 filter
Instanton-induced Yang-Mills correlation functions at large N and their AdS_5xS^5 duals
Michael B. Green, Stefano Kovacs
Correlation functions of chiral primary operators and their superconformal descendants in the N=4 supersymmetric SU(N) Yang-Mills theory are studied in detail in a one-instanton ba…
Supersymmetry and Branes in M-theory Plane-waves
Nakwoo Kim, Jung-Tay Yee
We study brane embeddings in M-theory plane-waves and their supersymmetry. The relation with branes in AdS backgrounds via the Penrose limit is also explored. Longitudinal planar b…
Initial data for black hole collisions
S. Dain
I describe the construction of initial data for the Einstein vacuum equations that can represent a collision of two black holes. I stress in the main physical ideas.
BMN Gauge Theory as a Quantum Mechanical System
N. Beisert, C. Kristjansen, J. Plefka +1
We rigorously derive an effective quantum mechanical Hamiltonian from N=4 gauge theory in the BMN limit. Its eigenvalues yield the exact one-loop anomalous dimensions of scalar two…
Asymmetric Cosets
Thomas Quella, Volker Schomerus
The aim of this work is to present a general theory of coset models G/H in which different left and right actions of H on G are gauged. Our main results include a formula for their…
Remarks on type IIB pp waves with Ramond-Ramond fluxes and massive two dimensional nonlinear sigma models
Nakwoo Kim
We continue the study of supersymmetric type IIB pp wave solutions by Maldacena and Maoz (hep-th/0207284), who showed Ramond-Ramond five-forms can induce potential terms in the lig…
Gravitational self-force on a particle orbiting a Kerr black hole
Leor Barack, Amos Ori
We present a practical method for calculating the gravitational self-force, as well as the electromagnetic and scalar self forces, for a particle in a generic orbit around a Kerr b…
On Scherk-Schwarz mechanism in gauged five-dimensional supergravity and on its relation to bigravity
Zygmunt Lalak, Radoslaw Matyszkiewicz
We demonstrate the relation between the Scherk-Schwarz mechanism and flipped gauged brane-bulk supergravities in five dimensions. We discuss the form of supersymmetry violating Sch…
Stationary structure of relativistic superfluid neutron stars
R. Prix, J. Novak, G. L. Comer
We describe recent progress in the numerical study of the structure of rapidly rotating superfluid neutron star models in full general relativity. The superfluid neutron star is de…
Gravitational redshifts in electromagnetic bursts occuring near Schwarzschild horizon
Janusz Karkowski, Edward Malec
It was suggested earlier that the gravitational redshift formula can be invalid when the effect of the backscattering is strong. It is demonstrated here numerically, for an exempla…
Gravitational corrections in supersymmetric gauge theory and matrix models
Albrecht Klemm, Marcos Marino, Stefan Theisen
Gravitational corrections in N=1 and N=2 supersymmetric gauge theories are obtained from topological string amplitudes. We show how they are recovered in matrix model computations.…
Macroscopic mechanical oscillators at the quantum limit using optomechanical cooling
David Vitali, Stefano Mancini, Luciano Ribichini +1
We discuss how the optomechanical coupling provided by radiation pressure can be used to cool macroscopic collective degrees of freedom, as vibrational modes of movable mirrors. Co…
Existence of CMC and constant areal time foliations in T^2 symmetric spacetimes with Vlasov matter
Hakan Andreasson, Alan D. Rendall, Marsha Weaver
The global structure of solutions of the Einstein equations coupled to the Vlasov equation is investigated in the presence of a two-dimensional symmetry group. It is shown that the…
A new class of obstructions to the smoothness of null infinity
J. A. Valiente-Kroon
Expansions of the gravitational field arising from the development of asymptotically Euclidean, time symmetric, conformally flat initial data are calculated in a neighbourhood of s…
Polymer and Fock representations for a Scalar field
Abhay Ashtekar, Jerzy Lewandowski, Hanno Sahlmann
In loop quantum gravity, matter fields can have support only on the `polymer-like' excitations of quantum geometry, and their algebras of observables and Hilbert spaces of states c…
BMN Operators and Superconformal Symmetry
Niklas Beisert
Implications of N=4 superconformal symmetry on Berenstein-Maldacena-Nastase (BMN) operators with two charge defects are studied both at finite charge J and in the BMN limit. We fin…
Relativistic Elasticity
Robert Beig, Bernd G. Schmidt
Relativistic elasticity on an arbitrary spacetime is formulated as a Lagrangian field theory which is covariant under spacetime diffeomorphisms. This theory is the relativistic ver…
Perturbative Solutions of the Extended Constraint Equations in General Relativity
Adrian Butscher
The extended constraint equations arise as a special case of the conformal constraint equations that are satisfied by an initial data hypersurface in an asymptotically simple s…
On "many black hole" space-times
Piotr T. Chrusciel, Rafe Mazzeo
We analyze the horizon structure of families of space times obtained by evolving initial data sets containing apparent horizons with several connected components. We show that unde…
Lectures on Loop Quantum Gravity
Thomas Thiemann
Quantum General Relativity (QGR), sometimes called Loop Quantum Gravity, has matured over the past fifteen years to a mathematically rigorous candidate quantum field theory of the…
On the existence of global solutions for -Gowdy spacetimes with stringy matter
Makoto Narita
We show a global existence theorem for Einstein-matter equations of -Gowdy symmetric spacetimes with stringy matter. The areal time coordinate is used. It is shown that this…
Are there really any AdS_2 branes in the euclidean (or not) AdS_3?
Benedicte Ponsot, Sebastian Silva
We do not find any AdS_2 branes, neither in the H_3^+ WZNW model nor the SL(2,R) WZNW model. We then reexamine the case of the branes that possess a su(2) symmetry: we speculate th…
Are pulsar glitches triggered by a superfluid two-stream instability?
N. Andersson, G. L. Comer, R. Prix
Mature neutron stars are expected to have several superfluid components. Strong evidence for this is provided by the glitches that have been observed in dozens of pulsars. The unde…
The Crustal Rigidity of a Neutron Star, and Implications for PSR 1828-11 and other Precession Candidates
Curt Cutler, Greg Ushomirsky, Bennett Link
We calculate the crustal rigidity parameter, b, of a neutron star (NS), and show that b is a factor 40 smaller than the standard estimate due to Baym & Pines (1971). For a NS with…