Zobrazeno 1 - 10
of 356
pro vyhledávání: '"José M, Sánchez"'
Autor:
Martín-Caro, Alberto García, García-Moreno, Gerardo, Olmedo, Javier, Velázquez, Jose M. Sánchez
Publikováno v:
Phys. Rev. D 110, 025007 (2024)
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 an equivalence between this time-dependent setting and a field theory
Externí odkaz:
http://arxiv.org/abs/2404.06166
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 the context of dark matter, since it allows to constrain the propertie
Externí odkaz:
http://arxiv.org/abs/2310.07515
Tertiary lymphoid organs in wild boar exposed to a low-virulent isolate of African swine fever virus
Autor:
Néstor Porras, José M. Sánchez-Vizcaíno, Antonio Rodríguez-Bertos, Aleksandra Kosowska, José Á. Barasona
Publikováno v:
Veterinary Quarterly, Vol 44, Iss 1, Pp 1-13 (2024)
AbstractDespite the great interest in the development of a vaccine against African swine fever (ASF) in wild boar, the immunological mechanisms that induce animal protection are still unknown. For this purpose, tertiary lymphoid organs (TLOs) of wild
Externí odkaz:
https://doaj.org/article/2e9a39726ace46368d16e4e8466db850
Autor:
Martín-Caro, Alberto García, García-Moreno, Gerardo, Olmedo, Javier, Velázquez, Jose M. Sánchez
Publikováno v:
Phys. Rev. D 108, L061701 (2023)
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 consisting of a coplanar waveguide terminated in superconducting quantum-i
Externí odkaz:
http://arxiv.org/abs/2306.05250
Autor:
Álvarez-Domínguez, Álvaro, Cembranos, José A. R., Garay, Luis J., Martín-Benito, Mercedes, Parra-López, Álvaro, Velázquez, Jose M. Sánchez
Publikováno v:
Phys. Rev. D 108, 065008 (2023)
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 propose a measurement-motivated understanding: Each way of measuring the num
Externí odkaz:
http://arxiv.org/abs/2303.07436
Late vacuum choice and slow roll approximation in gravitational particle production during reheating
Publikováno v:
JCAP08(2023)060
In the transition between inflation and reheating, the curvature scalar typically undergoes oscillations which have significant impact on the density of gravitationally produced particles. The commonly used adiabatic vacuum prescription for the extra
Externí odkaz:
http://arxiv.org/abs/2301.04674
Publikováno v:
Quantum 7, 1042 (2023)
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 of the scale factor is set by the equations of Jackiw-Teitelboim gravi
Externí odkaz:
http://arxiv.org/abs/2212.01355
Autor:
Barceló, Carlos, Boyanov, Valentin, Garay, Luis J., Martín-Martínez, Eduardo, Velázquez, Jose M. Sánchez
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 blueshift (which are analogous to points of a black hole inner horizon, know
Externí odkaz:
http://arxiv.org/abs/2207.06458
Autor:
Víctor Rodríguez Martín-Aragón, Mónica Trigal Martínez, Cristina Cuadrado, Antonio Hernández Daranas, Antonio Fernández Medarde, José M. Sánchez López
Publikováno v:
ACS Omega, Vol 8, Iss 42, Pp 39873-39885 (2023)
Externí odkaz:
https://doaj.org/article/ae4dbf88a60f4fc5beafe3a5367cd817
Autor:
Gutiérrez, Daniel E. Borrajo, Cembranos, Jose A. R., Garay, Luis J., Velázquez, Jose M. Sánchez
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 term. The most general first order action contains derivative couplings t
Externí odkaz:
http://arxiv.org/abs/2006.08546