Zero-point energy of massless scalar fields in the presence of soft and semihard boundaries in D dimensions

Authors
Caruso, F De Paola, R Svaiter, NF
Citation
F. Caruso et al., Zero-point energy of massless scalar fields in the presence of soft and semihard boundaries in D dimensions, INT J MOD P, 14(13), 1999, pp. 2077-2089
Citations number
26
Categorie Soggetti
Physics
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN journal
0217751X → ACNP
Volume
14
Issue
13
Year of publication
1999
Pages
2077 - 2089
Database
ISI
SICI code
0217-751X(19990520)14:13<2077:ZEOMSF>2.0.ZU;2-8
Abstract
The renormalized energy density of a massless scaler field defined in a D-d imensional flat space-time is computed in the presence of "soft" and "semih ard" boundaries, modeled by some smoothly increasing potential functions. T he sign of the renormalized energy densities for these different confining situations is investigated. The dependence of this energy on D for the case s of "hard" and "soft/semihard" boundaries are compared.