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What is in the black box of dark energy: variable cosmological parameters or multiple (interacting) components?


Štefančić, Hrvoje
What is in the black box of dark energy: variable cosmological parameters or multiple (interacting) components? // 2nd International Conference on Quantum Theories and Renormalization Group in Gravity and Cosmology
Barcelona, Španjolska, 2006. (pozvano predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
What is in the black box of dark energy: variable cosmological parameters or multiple (interacting) components?

Autori
Štefančić, Hrvoje

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Skup
2nd International Conference on Quantum Theories and Renormalization Group in Gravity and Cosmology

Mjesto i datum
Barcelona, Španjolska, 11-15.07.2006.

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Dark energy; cosmological parameters

Sažetak
The unknown nature of dark energy reflects itself in a number of puzzling properties of the present Universe, comprising the coincidence problem of the presently comparable energy densities of nonrelativistic matter and dark energy and the peculiarities of the possible evolution of the dark energy equation of state. A solution of these problems can be sought by considering dark energy as an effective description of alternative cosmological models. An effective dark energy behavior of the cosmological models with variable parameters as well as the composite models of dark energy is presented. Implications of these cosmological problems to the coincidence problem and a possible cosmological constant boundary crossing are discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Pozvano predavanje (paralel session)



POVEZANOST RADA


Projekt / tema
0098002

Ustanove
Institut "Ruđer Bošković", Zagreb