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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Microscopic dynamical Casimir effect

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Autor(es):
de Melo e Souza, Reinaldo [1] ; Impens, Francois [2] ; Maia Neto, Paulo A. [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Fed Fluminense, Inst Fis, CP 24210-346, BR-24210346 Niteroi, RJ - Brazil
[2] Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941909 Rio De Janeiro, RJ - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Physical Review A; v. 97, n. 3 MAR 19 2018.
Citações Web of Science: 7
Resumo

We consider an atom in its ground state undergoing a nonrelativistic oscillation in free space. The interaction with the electromagnetic quantum vacuum leads to two effects to leading order in perturbation theory. When the mechanical frequency is larger than the atomic transition frequency, the dominant effect is the motion-induced transition to an excited state with the emission of a photon carrying the excess energy. We compute the angular distribution of emitted photons and the excitation rate. On the other hand, when the mechanical frequency is smaller than the transition frequency, the leading-order effect is the parametric emission of photon pairs, which constitutes the microscopic counterpart of the dynamical Casimir effect. We discuss the properties of the microscopic dynamical Casimir effect and build a connection with the photon production by an oscillating macroscopic metallic mirror. (AU)

Processo FAPESP: 14/50983-3 - INCT 2014: fluidos complexos
Beneficiário:Antonio Martins Figueiredo Neto
Linha de fomento: Auxílio à Pesquisa - Temático