Decoherence in quantum systems in a static gravitational field

被引：5

作者：

Shariati, Ahmad ^{[1
]}

Khorrami, Mohammad ^{[1
]}

Loran, Farhang ^{[2
]}

机构：

[1] Alzahra Univ, Dept Phys, Tehran 1993891167, Iran

[2] Isfahan Univ Technol, Dept Phys, Esfahan 8415683111, Iran

来源：

EPL | 2016年 / 115卷 / 05期

关键词：

D O I：

10.1209/0295-5075/115/50003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A small quantum system is studied which is a superposition of states localized in different positions in a static gravitational field. The time evolution of the correlation between different positions is investigated, and it is seen that there are two time scales for such an evolution (decoherence). Both time scales are inversely proportional to the red shift difference between the two points. These time scales correspond to decoherences which are linear and quadratic, respectively, in time. Copyright (C) EPLA, 2016

引用

页数：4

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