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    • FM - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/40853

    Título
    Field Fluctuations and Casimir Energy of 1D-Fermions
    Autor
    Donaire del Yerro, Manuel AntonioAutoridad UVA Orcid
    Muñoz Castañeda, José MaríaAutoridad UVA
    Nieto Calzada, Luis MiguelAutoridad UVA Orcid
    Tello Fraile, MarcosAutoridad UVA
    Año del Documento
    2019
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    Symmetry, 2019, vol. 11, n. 5. 14 p.
    Abstract
    We investigate the self-adjoint extensions of the Dirac operator of a massive one-dimensional field of mass m confined in a finite filament of length L. We compute the spectrum of vacuum fluctuations of the Dirac field under the most general dispersionless boundary conditions. We identify its edge states in the mass gap within a set of values of the boundary parameters, and compute the Casimir energy of the discrete normal modes. Two limit cases are considered, namely, that of light fermions with mL 1, and that of heavy fermions for which mL 1. It is found that both positive and negative energies are obtained for different sets of values of the boundary parameters. As a consequence of our calculation we demonstrate that the sign of the quantum vacuum energy is not fixed for exchange-symmetric plates (parity-invariant configurations), unlike for electromagnetic and scalar fields.
    Palabras Clave
    Vacuum fluctuations
    Fluctuación cuántica
    Boundary conditions
    Condiciones de frontera
    Casimir effect
    Efecto Casimir
    Dirac field
    Campo de Dirac
    ISSN
    2073-8994
    Revisión por pares
    SI
    DOI
    10.3390/sym11050643
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (grant MTM2014-57129-C2-1-P)
    Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (grants VA057U16 and BU229P18)
    Junta de Castilla y León (grant VA137G18)
    Version del Editor
    https://www.mdpi.com/2073-8994/11/5/643
    Propietario de los Derechos
    © 2019 MDPI
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/40853
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Collections
    • FM - Artículos de revista [135]
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