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Hamiltonian approach to the dynamical Casimir effect
Haro Cases, Jaume (Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada I)
Elizalde, Emilio (Institut d'Estudis Espacials de Catalunya)
American Physical Society

Data: 2006
Resum: A Hamiltonian approach is introduced in order to address some severe problems associated with the physical description of the dynamical Casimir effect at all times. For simplicity, the case of a neutral scalar field in a one-dimensional cavity with partially transmitting mirrors (an essential proviso) is considered, but the method can be extended to fields of any kind and higher dimensions. The motional force calculated in our approach contains a reactive term-proportional to the mirrors' acceleration-which is fundamental in order to obtain (quasi)particles with a positive energy all the time during the movement of the mirrors-while always satisfying the energy conservation law. Comparisons with other approaches and a careful analysis of the interrelations among the different results previously obtained in the literature are carried out.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: Article ; Versió publicada
Publicat a: Physical review letters, Vol. 97, Issue 13 (September 2006) , p. 130401, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.97.130401

4 p, 115.5 KB

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