Nonequilibrium Goldstone phenomenon in tachyonic preheating -: art. no. 063512

被引：21

作者：

Borsányi, S ^{[1
]}

Patkós, A ^{[1
]}

Sexty, D ^{[1
]}

机构：

[1] Eotvos Lorand Univ, Dept Atom Phys, Budapest, Hungary

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.68.063512

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The dominance of the direct production of elementary Goldstone waves is demonstrated in tachyonic preheating by numerically determining the evolution of the dispersion relation, the equation of state, and the kinetic power spectra for the angular degree of freedom of the complex matter field. The importance of the domain structure in the order parameter distribution for a quantitative understanding of the excitation mechanism is emphasized. Evidence is presented for the very early decoupling of the low-momentum Goldstone modes.

引用

页数：8

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