Logarithmic corrections to the FRW brane cosmology from 5d Schwarzschild-deSitter black hole

Details Logarithmic corrections to the FRW brane cosmology from 5d Schwarzschild-deSitter black hole Logarithmic corrections to the FRW brane cosmology from 5d Schwarzschild-deSitter black hole

2002-12-04

arxiv.org/abs/hep-th/0212047v2

Int.J.Mod.Phys.A18:3395-3416,2003

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file 24 pages, expanded version to match with published one

Scientific paper

10.1142/S0217751X03015301

Thermodynamics of 5d SdS black hole is considered. Thermal fluctuations define the (sub-dominant) logarithmic corrections to black hole entropy and then to Cardy-Verlinde formula and to FRW brane cosmology. We demonstrate that logarithmic terms (which play the role of effective cosmological constant) change the behavior of 4d spherical brane in dS, SdS or Nariai bulk. In particularly, bounce Universe occurs or 4d dS brane expands to its maximum and then shrinks. The entropy bounds are also modified by next-to-leading terms. Out of braneworld context the logarithmic terms may suggest slight modification of standard FRW cosmology.

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