Artículo
Motion induced excitation and radiation from an atom facing a mirror
Fecha de publicación:
02/2022
Editorial:
American Physical Society
Revista:
Physical Review D
ISSN:
0556-2821
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We study quantum dissipative effects due to the nonrelativistic, bounded, accelerated motion of a single neutral atom in the presence of a planar perfect mirror, i.e., a perfect conductor at all frequencies. We consider a simplified model whereby a moving “scalar atom” is coupled to a quantum real scalar field, subjected to either Dirichlet or Neumann boundary conditions on the plane. We use an expansion in powers of the departure of the atom with respect to a static average position to compute the vacuum persistence amplitude and the resulting vacuum decay probability. We evaluate transition amplitudes corresponding to the excitation of the atom plus the emission of a particle, and show explicitly that the vacuum decay probabilities match the results obtained by integrating the transition amplitudes over the directions of the emitted particle. We also compute the spontaneous emission rate of an oscillating atom that is initially in an excited state.
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Fosco, Cesar Daniel; Lombardo, Fernando Cesar; Mazzitelli, Francisco Diego; Motion induced excitation and radiation from an atom facing a mirror; American Physical Society; Physical Review D; 105; 4; 2-2022; 1-9
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