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Pregled bibliografske jedinice broj: 83503

Renormalization-group running of the cosmological constant and the fate of the universe


Guberina, Branko; Horvat, Raul; Štefančić, Hrvoje
Renormalization-group running of the cosmological constant and the fate of the universe // Physical Review D, 67 (2003), 8; 083001-9 (međunarodna recenzija, članak, znanstveni)


Naslov
Renormalization-group running of the cosmological constant and the fate of the universe

Autori
Guberina, Branko ; Horvat, Raul ; Štefančić, Hrvoje

Izvornik
Physical Review D (0556-2821) 67 (2003), 8; 083001-9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Renormalization group; cosmological constant; vacuum energy

Sažetak
For a generic quantum field theory we study the role played by the renormalization-group (RG) running of the cosmological constant (CC) in determining the ultimate fate of the universe. We consider the running of the CC of generic origin (the vacuum energy of quantum fields and the potential energy of classical fields), with the RG scale proportional to the (total energy density)(1/4) as the most obvious identification. Starting from the present-era values for cosmological parameters we demonstrate how the running can easily provide a negative cosmological constant, thereby changing the fate of the universe, at the same time rendering compatibility with critical string theory. We also briefly discuss the recent past in our scenario.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0098002
0098011

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI