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General Relativity
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The article was published on 1984-01-01 and is currently open access. It has received 8137 citations till now. The article focuses on the topics: Initial value formulation & Hole argument.read more
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General definition of “conserved quantities” in general relativity and other theories of gravity
Robert M. Wald,Andreas Zoupas +1 more
TL;DR: In this paper, a modification of the equation that must be satisfied by a Hamiltonian is proposed, which is applicable to a very general class of asymptotic conditions in arbitrary diffeomorphism covariant theories of gravity derivable from a Lagrangian.
Journal ArticleDOI
Supernova limits on the cosmic equation of state
Peter M. Garnavich,Saurabh Jha,Peter Challis,Alejandro Clocchiatti,Alan H. Diercks,Alexei V. Filippenko,R. L. Gilliland,Craig J. Hogan,Robert P. Kirshner,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Adam G. Riess,Brian P. Schmidt,Robert A. Schommer,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry,Sean M. Carroll +20 more
TL;DR: In this paper, the authors used Type Ia supernovae studied by the High-z Supernova Search Team to constrain the properties of an energy component that may have contributed to accelerating the cosmic expansion.
Journal ArticleDOI
Acoustic black holes: horizons, ergospheres and Hawking radiation
TL;DR: In this article, a pedagogical derivation of the Lagrangian equation for the velocity potential describing a sound wave is identical to that for a minimally coupled massless scalar field propagating in a (3 + 1)-dimensional Lorentzian geometry.
Journal ArticleDOI
Aspects of the BMS/CFT correspondence
Glenn Barnich,Cédric Troessaert +1 more
TL;DR: In this paper, the symmetry algebra of asymptotically flat spacetimes at null infinity in 4 dimensions is taken to be the semi-direct sum of supertranslations with infinitesimal local conformal transformations.
Journal ArticleDOI
Pressure and volume in the first law of black hole thermodynamics
TL;DR: In this paper, the mass of a black hole is interpreted as being the enthalpy, with the pressure given by the cosmological constant, and a virial expansion is developed and a van der Waals like critical point determined.
Related Papers (5)
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess,Alexei V. Filippenko,Peter Challis,Alejandro Clocchiatti,Alan H. Diercks,Peter M. Garnavich,R. L. Gilliland,Craig J. Hogan,Saurabh Jha,Robert P. Kirshner,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Brian P. Schmidt,R. A. Schommer,R. Chris Smith,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry +20 more