Brane world solutions, standard cosmology, and dark radiation
Nov, 1999Citations per year
Abstract:
New exact solutions of brane-world cosmology are given. These solutions include an arbitrary constant C, which is determined by the geometry outside the brane and which affects the cosmological evolution in the brane-world. If C is zero, then the standard cosmology governs the brane-world as a low-energy effective cosmological theory. However, if C is not zero, then even in low-energy the brane-world cosmology gives predictions different from the standard one. The difference can be understood as ``dark radiation'', which is not real radiation but alters cosmological evolutions.- 04.50.+h
- 98.80.Cq
- 12.10.-g
- 11.25.Mj
- gravitation
- dimension: 5
- Einstein equation: solution
- cosmological model
- membrane model
- radiation
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