Artículo
Domain wall interactions due to vacuum Dirac field fluctuations in 2+1 dimensions
Fecha de publicación:
29/07/2016
Editorial:
American Physical Society
Revista:
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN:
2470-0029
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We evaluate quantum effects due to a two-component Dirac field in 2+1 spacetime dimensions, coupled to domain-wall-like defects with a smooth shape. We show that these effects induce nontrivial contributions to the (shape-dependent) energy of the domain walls. For a single defect, we study the divergences in the corresponding self-energy, and also consider the role of the massless zero mode - corresponding to the Callan-Harvey mechanism - by coupling the Dirac field to an external gauge field. For two defects, we show that the Dirac field induces a nontrivial, Casimir-like effect between them, and we provide an exact expression for that interaction in the case of two straight-line parallel defects. As is the case for the Casimir interaction energy, the result is finite and unambiguous.
Palabras clave:
Quantum Vacuum
,
Domain Walls
,
Casimir Forces
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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; Mazzitelli, Francisco Diego; Domain wall interactions due to vacuum Dirac field fluctuations in 2+1 dimensions; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 94; 2; 29-7-2016; 1-9; 025038
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