Classical paths and the WKB approximation

被引：0
|
作者：
J.C. Martinez
E. Polatdemir
机构：
[1] Division of Physics,
[2] National Institute of Education,undefined
[3] Nanyang Technological University,undefined
[4] 469 Bukit Timah Road,undefined
[5] Singapore 259756,undefined
[6] Singapore,undefined
来源：
The European Physical Journal C - Particles and Fields | 2000年 / 18卷
关键词：
Complex Time; Green Function; Integral Formalism; Quantum Tunneling; Path Integral Formalism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Recently, new connection formulas for the WKB method have been proposed, without justification, for quantum tunneling problems. We show that these formulas can be associated with diagrammatic rules within the complex time framework of the path integral formalism and then we express the relevant Green functions in terms of a sum of contributions coming from (easily interpreted) classical paths. The method is applied to barrier penetration and the double well.
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页码：195 / 201
页数：6
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