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Pregled bibliografske jedinice broj: 83503

Časopis

Autori: Guberina, Branko; Horvat, Raul; Štefančić, Hrvoje
Naslov: Renormalization-group running of the cosmological constant and the fate of the universe
Izvornik: Physical Review D (0556-2821) 67 (2003), 8; 083001-9
Vrsta rada: članak
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.
Projekt / tema: 0098002, 0098011
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
SCI-EXP, SSCI i/ili A&HCI
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL cjelovitog teksta:
Google Scholar: Renormalization-group running of the cosmological constant and the fate of the universe



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