6533b828fe1ef96bd1288e10
RESEARCH PRODUCT
Dark energy cosmologies for codimension-two branes
Jan-markus SchwindtChristof Wetterichsubject
High Energy Physics - TheoryPhysicsNuclear and High Energy PhysicsBig RipFOS: Physical sciencesNon-standard cosmologyLambda-CDM modelCosmological constantAstrophysics::Cosmology and Extragalactic AstrophysicsMetric expansion of spaceTheoretical physicsGeneral Relativity and Quantum CosmologyClassical mechanicsHigh Energy Physics - Theory (hep-th)De Sitter universeQuantum cosmologyScale factor (cosmology)description
A six-dimensional universe with two branes in the "football-shaped" geometry leads to an almost realistic cosmology. We describe a family of exact solutions with time dependent characteristic size of internal space. After a short inflationary period the late cosmology is either of quintessence type or turns to a radiation dominated Friedmann universe where the cosmological constant appears as a free integration constant of the solution. The radiation dominated universe with relativistic fermions is analyzed in detail, including its dimensional reduction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-01-07 |