Dynamics of a Strongly Coupled Polaron

被引：23
|
作者：
Frank, Rupert L. [1 ]
Schlein, Benjamin [2 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
[2] Univ Bonn, D-53115 Bonn, Germany
来源：
LETTERS IN MATHEMATICAL PHYSICS | 2014年 / 104卷 / 08期
基金：
美国国家科学基金会;
关键词：
polaron; dynamics; Schrodinger operator; quantized field;
D O I：
10.1007/s11005-014-0700-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the dynamics of large polarons described by the Frohlich Hamiltonian in the limit of strong coupling. The initial conditions are (perturbations of) product states of an electron wave function and a phonon coherent state, as suggested by Pekar. We show that, to leading order on the natural time scale of the problem, the phonon field is stationary and the electron moves according to an effective linear Schrodinger equation.
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页码：911 / 929
页数：19
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