Reheating of the universe after inflation with f(phi)R gravity: Spontaneous decay of inflatons to bosons, fermions, and gauge bosons
Reheating of the universe after inflation with f(phi)R gravity: Spontaneous decay of inflatons to bosons, fermions, and gauge bosons
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膨胀后的宇宙在 f(phi)R 引力作用下重新加热:膨胀子自发衰变为玻色子、费米子和规范玻色子
DOI:
10.1103/physrevd.75.061301
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
E. Komatsu
中科院分区:
文献类型:
--
作者:
Yuki Watanabe;E. Komatsu
We show that reheating of the universe occurs spontaneously in a broad class of inflation models with $f(\ensuremath{\phi})R$ gravity ($\ensuremath{\phi}$ is the inflaton). The model does not require explicit couplings between $\ensuremath{\phi}$ and bosonic or fermionic matter fields. The couplings arise spontaneously when $\ensuremath{\phi}$ settles in the vacuum expectation value (vev) and oscillates, with coupling constants given by derivatives of $f(\ensuremath{\phi})$ at the vev and the mass of resulting bosonic or fermionic fields. This mechanism allows inflaton quanta to decay into any fields which are not conformally invariant in $f(\ensuremath{\phi})R$ gravity theories.
影响因子:
5
作者:
J. Yokoyama
通讯作者:
J. Yokoyama
DOI:
--
发表时间:
2006
期刊:
Physics Letters B 635巻2号
影响因子:
--
作者:
Hagino;M.;横山順一
通讯作者:
横山順一