Reheating from Tachyon Condensation | Zendy

James M. Cline | Zendy; Hassan Firouzjahi | Zendy; Patrick Martineau | Zendy

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Reheating from Tachyon Condensation

Author(s) -

James M. Cline,

Hassan Firouzjahi,

Patrick Martineau

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/11/041

Subject(s) - tachyon condensation , tachyon , physics , brane , annihilation , tachyonic field , massless particle , inflation (cosmology) , theoretical physics , universe , particle physics , dark matter , brane cosmology , string (physics) , higgs boson , quantum mechanics , higgs mechanism , higgs field , string field theory

We argue that it may be possible to reheat the universe after inflationdriven by D-brane annihilation, due to the coupling of massless fields to thetime-dependent tachyon condensate which describes the annihilation process.This mechanism can work if the original branes annihilate to a stable branecontaining the standard model. Given reasonable assumptions about the shape ofthe tachyon background configuration and the size of the relevant extradimension, the reheating can be efficient enough to overcome the problem of theuniverse being perpetually dominated by cold dark tachyon matter. Inparticular, reheating is most efficient when the final brane codimension islarge, and when the derivatives of the tachyon background are large.Comment: 20 pages, 10 figures; corrected discussion of kink-antikink formatio

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