Casimir energy of massive MIT fermions in an Aharonov-Bohm background - art. no. 085019

Authors
Beneventano, CG De Francia, M Kirsten, K Santangelo, EM
Citation
Cg. Beneventano et al., Casimir energy of massive MIT fermions in an Aharonov-Bohm background - art. no. 085019, PHYS REV D, 6108(8), 2000, pp. 5019
Citations number
43
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6108
Issue
8
Year of publication
2000
Database
ISI
SICI code
0556-2821(20000415)6108:8<5019:CEOMMF>2.0.ZU;2-Q
Abstract
We study the effect of a background flux string on the vacuum energy of mas sive Dirac fermions in 2+1 dimensions confined to a finite spatial region b y MIT boundary conditions. We treat two admissible selfadjoint extensions o f the Hamiltonian and compare the results. In particular, for one of these extensions, the Casimir energy turns out to be discontinuous at integer val ues of the flux.