Ground state of a quantum particle coupled to a scaler Bose field

被引：57

作者：

Spohn, H ^{[1
]}

机构：

[1] Univ Munich, D-80333 Munich, Germany

来源：

LETTERS IN MATHEMATICAL PHYSICS | 1998年 / 44卷 / 01期

关键词：

ground state; functional integration; particle and field;

D O I：

10.1023/A:1007473300274

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use methods from functional integration to prove the existence and uniqueness of the ground state of a confined quantum particle coupled to a scalar massless Bose field. For an external potential growing at infinity, the ground state exists under fairly general conditions while, for a decaying potential, an unphysical condition on the coupling strength is still needed.

引用

页码：9 / 16

页数：8