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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 3 Issue 3 (1998) pp 307-313
One-dimensional moving polarons with extended coherent states
Q.-H Chen (a), Y.-H. Ren, Z.-K Jiao
Physics Department, Zhejiang University, Hangzhou 310027, P.R. China
Received: 23 October 1997 / Revised and Accepted: 27 January 1998
Abstract: The general properties of one-dimensional large Fröhlich polarons in motion are investigated with the previous extended coherent states where two-phonon correlations are considered. As a result, the polaron energy, velocity, effective mass, and average number of virtual phonons as a function the polaron total momentum are evaluated in a wide range of the coupling constant. In addition, rich information about virtual phonons emitted by the electron in motion is obtained. More importantly, some intrinsic features of 1D moving polarons are presented for the first time, which may also be suited to moving polarons in more than one dimensions.
PACS. 71.38.+i Polarons and electron-phonon interactions - 63.20.Kr Phonon-electron and phonon-phonon interactions
(a) email: phygchen@ema.zju.edu.cn
Article in PDF-Format (312 KB)
Online publication: July 14, 1998
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