Nonequilibrium dynamics of quantum tunneling

被引：1
|
作者：
Hirota, K [1 ]
机构：
[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
来源：
PHYSICAL REVIEW D | 2000年 / 61卷 / 12期
关键词：
D O I：
10.1103/PhysRevD.61.123502
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider dynamics during phase transitions by quantum tunneling using nonequilibrium quantum field theory. We define an order parameter to represent a state of the system. The evolution equation of this order parameter and fluctuations around it are derived. In some cases long wave fluctuations are increased by instabilities during tunneling processes and these fluctuations enhance the tunneling.
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页数：10
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