Pregled bibliografske jedinice broj: 553082
Vacuum fluctuations of the supersymmetric field in curved background
Vacuum fluctuations of the supersymmetric field in curved background // Physics letters. B, 707 (2012), 1; 221-227 doi:10.1016/j.physletb.2011.12.025 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 553082 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Vacuum fluctuations of the supersymmetric field in curved background
Autori
Bilić, Neven ; Domazet, Silvije ; Guberina, Branko
Izvornik
Physics letters. B (0370-2693) 707
(2012), 1;
221-227
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
vacuum fluctuations; supersymmetry; curved background
Sažetak
We study a supersymmetric model in curved background spacetime. We calculate the effective action and the vacuum expectation value of the energy momentum tensor using a covariant regularization procedure. A soft supersymmetry breaking induces a nonzero contribution to the vacuum energy density and pressure. Assuming the presence of a cosmic fluid in addition to the vacuum fluctuations of the supersymmetric field an effective equation of state is derived in a self-consistent approach at one loop order. The net effect of the vacuum fluctuations of the supersymmetric fields in the leading adiabatic order is a renormalization of the Newton and cosmological constants.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
098-0982930-2864 - Fundamentalne interakcije u fizici elementarnih čestica i kozmologiji (Duplančić, Goran, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
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
