43 citations · 92 across the 10 of their papers we have counts for
12 papers
Robustness of analogue Hawking radiation in cavities with moving boundaries
Alberto García Martín-Caro, Javier Olmedo, Jose M. Sánchez Velázquez
In this work we explore the limitations and robustness of thermal radiation in dynamical Casimir systems serving as analogs for Hawking radiation. Through detailed numerical analys…
Classical and quantum field theory in a box with moving boundaries: A numerical study of the Dynamical Casimir Effect
Alberto García Martín-Caro, Gerardo García-Moreno, Javier Olmedo +1
We present a detailed description of a quantum scalar field theory within a flat spacetime confined to a cavity with perfectly reflecting moving boundaries. Moreover, we establish…
Dynamical quantum maps for single-qubit gates under universal non-Markovian noise
J. M. Sánchez Velázquez, A. Steiner, R. Freund +4
Noise is both ubiquitous and generally deleterious in settings where precision is required. This is especially true in the quantum technology sector where system utility typically…
Vector dark matter production during inflation and reheating
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López +1
Gravitational particle production of spectator fields due to the expansion universe during the inflationary and reheating phases of the early universe is of particular interest in…
Hawking radiation from an analogue bouncing geometry
Alberto García Martín-Caro, Gerardo García-Moreno, Javier Olmedo +1
We propose a setting that simulates Hawking radiation from an analogue bouncing geometry, i.e., a collapsing geometry that reverts its collapse after a finite time, in a setup cons…
Operational realization of quantum vacuum ambiguities
Álvaro Álvarez-Domínguez, José A. R. Cembranos, Luis J. Garay +3
We provide a reinterpretation of the quantum vacuum ambiguities that one encounters when studying particle creation phenomena due to an external and time-dependent agent. We propos…
Late vacuum choice and slow roll approximation in gravitational particle production during reheating
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López +1
In the transition between inflation and reheating, the curvature scalar typically undergoes oscillations which have significant impact on the density of gravitationally produced pa…
Fermion production at the boundary of an expanding universe: a cold-atom gravitational analogue
Carlos Fulgado-Claudio, Jose M. Sánchez Velázquez, Alejandro Bermudez
We study the phenomenon of cosmological particle production of Dirac fermions in a Friedman-Robertson-Walker spacetime, focusing on a (1+1)-dimensional case in which the evolution…
Warp Drive Aerodynamics
Carlos Barceló, Valentin Boyanov, Luis J. Garay +2
In this work we analyse the potential for a warp drive spacetime to develop instabilities due to the presence of quantum matter. Particularly, we look for points of infinite bluesh…
Derivative couplings in gravitational production in the early universe
Daniel E. Borrajo Gutiérrez, Jose A. R. Cembranos, Luis J. Garay +1
Gravitational particle production in the early universe is due to the coupling of matter fields to curvature. This coupling may include derivative terms that modify the kinetic ter…
Gravitational production of scalar dark matter
Jose A. R. Cembranos, Luis J. Garay, Jose M. Sánchez Velázquez
We investigate the gravitational production of scalar dark matter particles during the inflationary and reheating epochs. The oscillatory behavior of the curvature scalar durin…
On scalar and vector fields coupled to the energy-momentum tensor
Jose Beltran Jimenez, Jose A. R. Cembranos, Jose M. Sanchez Velazquez
We consider theories for scalar and vector fields coupled to the energy-momentum tensor. Since these fields also carry a non-trivial energy-momentum tensor, the coupling prescripti…