Coherent-state path integrals in the continuum

被引：15
|
作者：
Kordas, G. [1 ]
Mistakidis, S. I. [1 ,2 ]
Karanikas, A. I. [1 ]
机构：
[1] Univ Athens, Dept Phys, GR-15771 Athens, Greece
[2] Univ Hamburg, Zentrum Opt Quantentechnol, D-22761 Hamburg, Germany
来源：
PHYSICAL REVIEW A | 2014年 / 90卷 / 03期
关键词：
APPROXIMATIONS; TRANSITION;
D O I：
10.1103/PhysRevA.90.032104
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We discuss the time continuous path integration in the coherent-state basis in a way that is free from inconsistencies. Employing this notion we reproduce known and exact results working directly in the continuum. Such a formalism can set the basis to develop perturbative and nonperturbative approximations already known in the quantum-field-theory community. These techniques can be proven useful in a great variety of problems where bosonic Hamiltonians are used.
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页数：7
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