Harmonic oscillator model for the atom-wall Casimir-Polder interaction energy

Salvatore Spagnolo, Roberto Passante, Lucia Rizzuto, Tomio Y. Petrosky, Satoshi Tanaka

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11 Citazioni (Scopus)

Abstract

In this paper we consider a quantum harmonic oscillator interacting with the electromagnetic radiation field in the presence of a boundary condition preserving the continuous spectrum of the field, such as an infinite perfectly conducting plate. Using an appropriate Bogoliubov-type transformation we can diagonalize exactly the Hamiltonian of our system in the continuum limit and obtain non-perturbative expressions for its ground-state energy. From the expressions found, the atom-wall Casimir-Polder interaction energy can be obtained, and well-know lowest-order results are recovered as a limiting case. Use and advantage of this method for dealing with other systems where perturbation theory cannot be used is also discussed.
Lingua originaleEnglish
pagine (da-a)062109-1-062109-6
Numero di pagine6
RivistaPHYSICAL REVIEW A
Volume85
Stato di pubblicazionePublished - 2012

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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