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Autor Garay Elizondo, Luis Javier |
Documentos disponibles escritos por este autor (46)
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Cirac, J. I. ; Garay Elizondo, Luis Javier ; Blatt, L. ; Parkins, A. S. ; Zoller, P. | American Physical Society | 1994-01Laser cooling of a single trapped ion in a Paul trap is discussed theoretically in the Lamb-Dicke limit, with full consideration of the time dependence of the trapping potential. Resulting mean kinetic energies are defined as time averages over [...]texto impreso
Martin Benito, M. ; Garay Elizondo, Luis Javier ; Mena Marugán, Guillermo A. ; Wilson-Ewing, E. | IOP publishing ltd | 2012We complete the canonical quantization of the vacuum Bianchi I model within the improved dynamics scheme of loop quantum cosmology, characterizing the Hilbert structure of the physical states and providing a complete set of observables acting on[...]texto impreso
Misner space is generalized to have the nonorientable topology of a Klein bottle, and it is shown that, in a classical spacetime with multiply connected space slices having such a topology, closed timelike curves are formed. Different regions on[...]texto impreso
Garay Elizondo, Luis Javier ; Halliwel, Jonathan J. ; Mena Marugán, Guillermo A. | Amer Physical Soc | 1991-04-15We study a class of minisuperspace models consisting of a homogenous isotropic universe with a minimally coupled homogenous scalar field with a potential alpha cosh(2-phi) + beta sinh(2-phi), where alpha and beta are arbitrary parameters. This i[...]texto impreso
Bouhmadi Lopez, M. ; Garay Elizondo, Luis Javier ; González Díaz, Pedro F. | Amer Physical Soc | 2002-09-15We study the quantum vacuum fluctuations around closed Friedmann-Robertson-Walker (FRW) radiation-filled universes with a nonvanishing cosmological constant. These vacuum fluctuations are represented by a conformally coupled massive scalar field[...]texto impreso
Martin Martinez, Eduardo ; Garay Elizondo, Luis Javier ; León, Juan | Amer Physical Soc | 2010-09-22A field in the vacuum state, which is in principle separable, can evolve to an entangled state in a dynamical gravitational collapse. We will study, quantify, and discuss the origin of this entanglement, showing that it could even reach the maxi[...]texto impreso
Egusquiza, Iñigo L. ; Garay Elizondo, Luis Javier ; Raya, José M. | American Physical Society | 1999-05We characterize good clocks, which are naturally subject to fluctuations, in statistical terms. We also obtain the master equation that governs the evolution of quantum systems according to these clacks and find its general solution. This master[...]texto impreso
In this work, I review some aspects concerning the evolution of quantum low-energy fields in a foamlike space-time, with involved topology at the Planck scale but with a smooth metric structure at large length scales, as follows. Quantum gravita[...]texto impreso
We study the effects of asymptotically anti-de Sitter wormholes in low-energy field theory and give a general prescription for obtaining the local effective interaction terms induced by them. The choice of vacuum for the matter fields selects a [...]texto impreso
Martin- Benito, M. ; Garay Elizondo, Luis Javier ; Mena Marugán, Guillermo A. | IOP publishing ltd | 2011The linearly polarized Gowdy T(3) model can be regarded as compact Bianchi I cosmologies with inhomogeneous modes allowed to travel in one direction. We study a hybrid quantization of this model that combines the loop quantization of the Bianchi[...]texto impreso
Observational indications combined with analyses of analogue and emergent gravity in condensed matter systems support the possibility that there might be two distinct energy scales related to quantum gravity: the scale that sets the onset of qua[...]texto impreso
The quantum state of a wormhole can be represented by a path integral over all asymptotically Euclidean four-geometries and all matter fields which have prescribed values, the arguments of the wave function, on a three-surface S which divides th[...]texto impreso
Galan, Pablo ; Garay Elizondo, Luis Javier ; Mena Marugán, Guillermo A. | Amer Physical Soc | 2007-08The combined action of gravity and quantum mechanics gives rise to a minimum time uncertainty in the lowest order approximation of a perturbative scheme, in which quantum effects are regarded as corrections to the classical spacetime geometry. F[...]texto impreso
We perform a quasinormal mode analysis of black-hole configurations in Bose-Einstein condensates (BECs). In this analysis we use the full Bogoliubov dispersion relation, not just the hydrodynamic or geometric approximation. We restrict our atten[...]texto impreso
Real clocks are not perfect. This must have an effect in our predictions for the behavior of a quantum system, an effect for which we present a unified description, encompassing several previous proposals. We study the relevance of clock errors [...]