Particle production in de Sitter space-time

被引：5
|
作者：
Sarkar, NG [1 ]
Biswas, S [1 ]
机构：
[1] Univ Kalyani, Dept Phys, Kalyani 741235, W Bengal, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2000年 / 15卷 / 04期
关键词：
particle production; Dirac current; de Sitter space-time;
D O I：
10.1142/S0217751X00000239
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The definition of vacuum in curved space-time is a delicate object. With Minkowski-like vacuum definition, the current has a characteristic behavior in Robertson-Walker space-time. In this work we study the behavior of Dirac current in a de Sitter spacetime. The rapid oscillations of current is observed with respect to time and indicate vigorous instability in initial vacuum and is interpreted as vigorous particle production.
引用
收藏
页码：497 / 508
页数：12
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