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Quantum Gowdy model within the new loop quantum cosmology improved dynamics
M Martín-Benito, L J Garay, G A Mena Marugán
The linearly polarized Gowdy model can be regarded as compact Bianchi I cosmologies with inhomogeneous modes allowed to travel in one direction. We study a hybrid quantizatio…
Unveiling quantum entanglement degradation near a Schwarzschild black hole
E. Martin-Martinez, L. J. Garay, J. Leon
We analyze the entanglement degradation provoked by the Hawking effect in a bipartite system Alice-Rob when Rob is in the proximities of a Schwarzschild black hole while Alice is f…
The two faces of quantum sound
C. Barcelo, L. J. Garay, G. Jannes
Fluctuations around a Bose-Einstein condensate can be described by means of Bogolubov theory leading to the notion of quasiparticle and antiquasiparticle familiar to non-relativist…
Inhomogeneous Loop Quantum Cosmology: Hybrid Quantization of the Gowdy Model
L. J. Garay, M. Martín-Benito, G. A. Mena Marugán
The Gowdy cosmologies provide a suitable arena to further develop Loop Quantum Cosmology, allowing the presence of inhomogeneities. For the particular case of Gowdy spacetimes with…
Quantum Non-Gravity and Stellar Collapse
C. Barcelo, L. J. Garay, G. Jannes
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…