Pregled bibliografske jedinice broj: 992071
Vacuum energy from noncommutative models
Vacuum energy from noncommutative models // Physics letters. B, 779 (2018), 244-248 doi:10.1016/j.physletb.2018.02.016 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 992071 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Vacuum energy from noncommutative models
Autori
Mignemi, Salvatore ; Samsarov, Anđelo
Izvornik
Physics letters. B (0370-2693) 779
(2018);
244-248
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
vacuum energy, cosmological constant, heat kernel, noncommutative models
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
HRZZ-IP-2014-09-9582 - Prema kvantnoj gravitaciji: nekomutativna geometrija, teorija polja i kozmologija (Meljanac, Stjepan, HRZZ - 2014-09) ( CroRIS)
EK-H2020-692194 - Institut Ruđer Bošković Twinning projekt: korak dalje za Zavod za teorijsku fiziku (RBI-T-WINNING) (Nesti, Fabrizio, EK ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Profili:
Anđelo Samsarov
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus