Morse oscillator propagator in the high temperature limit I: Theory

被引：6
|
作者：
Toutounji, Mohamad [1 ]
机构：
[1] UAE Univ, Coll Sci, POB 15551, Al Ain, U Arab Emirates
来源：
ANNALS OF PHYSICS | 2017年 / 377卷
关键词：
Morse oscillator; Quantum propagator; High temperature limit; Partition function; Diatomic molecule; GAP CORRELATION-FUNCTION; ANHARMONIC MOLECULES; SPECTRAL DENSITY; COHERENT STATES; GREEN-FUNCTION; DYNAMICS;
D O I：
10.1016/j.aop.2016.11.010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In an earlier work of the author the time evolution of Morse oscillator was studied analytically and exactly at low temperatures whereupon optical correlation functions were calculated using Morse oscillator coherent states were employed. Morse oscillator propagator in the high temperature limit is derived and a closed form of its corresponding canonical partition function is obtained. Both diagonal and off-diagonal forms of Morse oscillator propagator are derived in the high temperature limit. Partition functions of diatomic molecules are calculated. (C) 2016 Elsevier Inc. All rights reserved.
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页码：210 / 219
页数：10
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