Vacuum energy from noncommutative models

Mignemi, S.
;
2018-01-01

Abstract

The vacuum energy is computed for a scalar field in a noncommutative background in several models of noncommutative geometry. One may expect that the noncommutativity introduces a natural cutoff on the ultraviolet divergences of field theory. Our calculations show however that this depends on the particular model considered: in some cases the divergences are suppressed and the vacuum energy is only logarithmically divergent, in other cases they are stronger than in the commutative theory.
2018
Inglese
PHYSICS LETTERS. SECTION B
779
244
248
5
WOS:000429098900030
2-s2.0-85044461545
Esperti anonimi
scientifica
sì
Mignemi, S.; Samsarov, A.
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
2
open
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