Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5k papers
- University of OxfordGB3.5k papers
- University of EdinburghGB3k papers
- University College LondonGB2.9k papers
- University of ManchesterGB2.9k papers
- Heidelberg UniversityDE2.5k papers
- University of MichiganUS2.4k papers
- University of BirminghamGB2.3k papers
- University of WarwickGB2.3k papers
- Aix-Marseille UniversitéFR2.3k papers
- Rutherford Appleton LaboratoryGB2.2k papers
- European Organization for Nuclear ResearchCH2.2k papers
14 papers · 2 filters
K-causality and degenerate spacetimes
H. F. Dowker, R. S. Garcia, S. Surya
The causal relation was introduced by Sorkin and Woolgar to extend the standard causal analysis of spacetimes to those that are only . Most of their results also h…
A Probe Particle in Kerr-Newman-deSitter Cosmos
Tetsuya Shiromizu, Uchida Gen
We consider the force acting on a spinning charged test particle (probe particle) with the mass m and the charge q in slow rotating the Kerr-Newman-deSitter(KNdS) black hole with t…
Black Holes of a Minimal Size in String Gravity
S. O. Alexeyev, M. V. Sazhin, M. V. Pomazanov
A lower limit for a neutral black hole size is obtained in the frames of the string gravity model with the second order curvature correction. It is shown that this effect remains w…
Effective noise in stochastic description of inflation
S. Winitzki, A. Vilenkin
Stochastic description of inflationary spacetimes emulates the growth of vacuum fluctuations by an effective stochastic ``noise field'' which drives the dynamics of the volume-smoo…
Disc sources for Conformastationary metrics
J. Katz, J. Bicak, D. Lynden-Bell
Conformastationary metrics have been derived by Perjes and by Israel and Wilson as source-free solutions of the Einstein-Maxwell equations. By analogy with the conformastatic metri…
Quadratic Lagrangians and Topology in Gauge Theory Gravity
Antony Lewis, Chris Doran, Anthony Lasenby
We consider topological contributions to the action integral in a gauge theory formulation of gravity. Two topological invariants are found and are shown to arise from the scalar a…
A new form of the Kerr solution
Chris Doran
A new form of the Kerr solution is presented. The solution involves a time coordinate which represents the local proper time for free-falling observers on a set of simple trajector…
The Einstein Equations on the 3-Brane World
Tetsuya Shiromizu, Kei-ichi Maeda, Misao Sasaki
We carefully investigate the gravitational equations of the brane world, in which all the matter forces except gravity are confined on the 3-brane in a 5-dimensional spacetime with…
Gravity Waves, Chaos, and Spinning Compact Binaries
Janna Levin
Spinning compact binaries are shown to be chaotic in the Post-Newtonian expansion of the two body system. Chaos by definition is the extreme sensitivity to initial conditions and a…
Gravity waves from relativistic binaries
Janna Levin, Rachel O'Reilly, E. J. Copeland
The stability of binary orbits can significantly shape the gravity wave signal which future Earth-based interferometers hope to detect. The inner most stable circular orbit has bee…
Quantum inequalities and `quantum interest' as eigenvalue problems
Christopher J. Fewster, Edward Teo
Quantum inequalities (QI's) provide lower bounds on the averaged energy density of a quantum field. We show how the QI's for massless scalar fields in even dimensional Minkowski sp…
Space-times which are asymptotic to certain Friedman-Robertson-Walker space-times at timelike infinity
Tetsuya Shiromizu, Uchida Gen
We define space-times which are asymptotic to radiation dominant Friedman-Robertson-Walker space-times at timelike infinity and study the asymptotic structure. We discuss the local…
Predictability crisis in inflationary cosmology and its resolution
Vitaly Vanchurin, Alexander Vilenkin, Serge Winitzki
Models of inflationary cosmology can lead to variation of observable parameters ("constants of Nature") on extremely large scales. The question of making probabilistic predictions…
Gravoelectromagnetic approach to the gravitational Faraday rotation in stationary spacetimes
Mohammad Nouri-Zonoz
Using the 1+3 formulation of stationary spacetimes we show, in the context of gravoelectromagnetism, that the plane of the polarization of light rays passing close to a black hole…