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arXiv 1108.0541hep-phcond-mat.quant-gashep-lat
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宇宙暴胀后再加热中的电荷分离

Charge separation in Reheating after Cosmological Inflation

Thomas Gasenzer, Boris Nowak, Denes Sexty

摘要:

提出了相对论性标量O(2)对称自相互作用场参数共振加热的新观点。这个过程是在早期宇宙暴胀时期结束时重新加热的候选者。虽然使用了完全O(2)对称基态的模型,但可以观察到瞬态的亚稳态自发对称性破缺。这表现在持久的制度的形式相反,并在这些内部,均匀的电荷过密分离的细线和墙壁类似的拓扑缺陷,在两个和三个空间维度,分别。该配置被发现对应于一个有吸引力的非平衡不动点的基本动力学方程,防止热化在一个较长的时间。

英文摘要:

New aspects of parametrically resonant heating of a relativistic scalar O(2)-symmetric self-interacting field are presented. This process is a candidate for reheating at the end of the early-universe epoch of inflation. Although a model with a fully O(2)-symmetric ground state is used, transient, metastable spontaneous symmetry breaking can be observed. This manifests itself in the form of persistent regimes of opposite and, inside these, uniform charge overdensities separated by thin lines and walls similar to topological defects, in two and three spatial dimensions, respectively. The configuration is found to correspond to an attractive non-equilibrium fixed point of the underlying dynamic equations which prevents thermalisation over an extended period of time.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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