Naslov
Holography and a variable cosmological constant

Autori
Horvat, Raul

Izvornik
Physical review. D, Particles, fields, gravitation, and cosmology (1550-7998) 70 (2004);

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

Ključne riječi
holographic principle; cosmology; cosmological

Sažetak
An effective local quantum field theory with UV and IR cutoffs correlated in accordance with holographic entropy bounds is capable of rendering the cosmological constant (CC) stable against quantum corrections. By setting an IR cutoff to length scales relevant to cosmology, one easily obtains the currently observed rho_Lambda ~ 10^{;-47}; GeV4, thus alleviating the CC problem. It is argued that scaling behavior of the CC in these scenarios implies an interaction of the CC with matter sector or a time-dependent gravitational constant, to accommodate the observational data.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA