Zobrazeno 1 - 10
of 516
pro vyhledávání: '"Verdaguer, E."'
Autor:
Hu, B. L., Verdaguer, E.
Publikováno v:
Living Rev. Relativity, 11 (2008) 3
Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein-Langevin equation, whic
Externí odkaz:
http://arxiv.org/abs/0802.0658
Autor:
Verdaguer, E.
Publikováno v:
J.Phys.Conf.Ser.66:012006,2007
The back-reaction of a classical gravitational field interacting with quantum matter fields is described by the semiclassical Einstein equation, which has the expectation value of the quantum matter fields stress tensor as a source. The semiclassical
Externí odkaz:
http://arxiv.org/abs/gr-qc/0611051
Publikováno v:
Nucl.Phys.B756:148-170,2006
We consider some flat space theories for spin 2 gravitons, with less invariance than full diffeomorphisms. For the massless case, classical stability and absence of ghosts require invariance under transverse diffeomorphisms (TDiff). Generic TDiff inv
Externí odkaz:
http://arxiv.org/abs/hep-th/0606019
Autor:
Verdaguer, E.
Publikováno v:
Braz.J.Phys.35:271-279,2005
In semiclassical gravity the back-reaction of the classical gravitational field interacting with quantum matter fields is described by the semiclassical Einstein equations. A criterion for the validity of semiclassical gravity based on the stability
Externí odkaz:
http://arxiv.org/abs/gr-qc/0507073
Autor:
Hu, B. L., Verdaguer, E.
Publikováno v:
Living Rev.Rel.7:3,2004
Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein-Langevin equation, whic
Externí odkaz:
http://arxiv.org/abs/gr-qc/0307032
We give a short update of our research program on nonequilibrium statistical field theory applied to quantum processes in the early universe and black holes, as well as the development of stochastic gravity theory as an extension of semiclassical gra
Externí odkaz:
http://arxiv.org/abs/gr-qc/0304057
Autor:
Hu, B. L., Verdaguer, E.
Publikováno v:
Class.Quant.Grav.20:R1-R42,2003
Stochastic semiclassical gravity of the 90's is a theory naturally evolved from semiclassical gravity of the 70's and 80's. It improves on the semiclassical Einstein equation with source given by the expectation value of the stress-energy tensor of q
Externí odkaz:
http://arxiv.org/abs/gr-qc/0211090
Autor:
Hu, B. L., Verdaguer, E.
Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein- Langevin equation, whi
Externí odkaz:
http://arxiv.org/abs/gr-qc/0110092
Publikováno v:
Phys.Rev.D56:2163-2172,1997
We consider the classical stochastic fluctuations of spacetime geometry induced by quantum fluctuations of massless non-conformal matter fields in the Early Universe. To this end, we supplement the stress-energy tensor of these fields with a stochast
Externí odkaz:
http://arxiv.org/abs/gr-qc/9704010
Autor:
Dorca, M., Verdaguer, E.
Publikováno v:
Nucl.Phys. B484 (1997) 435-475
Following a previous work on the quantization of a massless scalar field in a spacetime representing the head on collision of two plane waves which fucus into a Killing-Cauchy horizon, we compute the renormalized expectation value of the stress-energ
Externí odkaz:
http://arxiv.org/abs/gr-qc/9605007