FRW universe in the laboratory (CROSBI ID 207929)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bilić, Nevenko ; Tolić, Dijana
engleski
FRW universe in the laboratory
We consider an expanding relativistic fluid with spherical symmetry as a model for an analog Friedmann-Robertson-Walker (FRW) spacetime. In the framework of relativistic acoustic geometry we demonstrate how to mimic an arbitrary FRW spacetime with positive, zero, or negative spatial curvature. In the Lagrangian description we show that a particular FRW spacetime is obtained by choosing the appropriate potential. We discuss several examples and in particular the analog de Sitter spacetime in the coordinate representation with positive and negative spatial curvature.
analog gravity; cosmology
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Podaci o izdanju
88 (10)
2013.
105002-1-105002-11
objavljeno
1550-7998
10.1103/PhysRevD.88.105002