Pregled bibliografske jedinice broj: 710897
Note on the thermodynamics and the speed of sound of a scalar field
Note on the thermodynamics and the speed of sound of a scalar field // Classical and quantum gravity, 31 (2014), 5; 055006-1 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 710897 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Note on the thermodynamics and the speed of sound of a scalar field
Autori
Bilić, Nevenko ; Piattella, Oliver F. ; Fabris, Julio C.
Izvornik
Classical and quantum gravity (0264-9381) 31
(2014), 5;
055006-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
perfect fluid; scalar field; speed of sound; cosmological perturbations
Sažetak
We investigate the correspondence between a perfect fluid and a scalar field and show a possible way of expressing thermodynamic quantities such as entropy, particle number density, temperature and chemical potential in terms of the scalar field phgr and its kinetic term X. We prove a theorem which relates isentropy with purely kinetic Lagrangian. As an application, we study the evolution of the gravitational potential in cosmological perturbation theory.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
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
