Open AccessGROUND-STATE ENERGY OF TWO-DIMENSIONAL POLARON IN A MAGNETIC FIELD
Author(s) -
Chuan-Yu Chen,
Peng Jin
Publication year - 1990
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.39.814
Subject(s) - polaron , ground state , physics , magnetic field , condensed matter physics , phonon , harmonic oscillator , perturbation (astronomy) , magnetic energy , quantum electrodynamics , quantum mechanics , magnetization , electron
The method of the harmonic oscillator operator algebra has been used to study the two-dimensional polaron in a magnetic field. Both the surface optical phonon and the surface acoustic phonon, and their interaction with the magnetic field are included. Ground-state energy corrections up to fourth-order perturbation for limiting cases of strdng field and that in second-order perturbation for field of arbitrary strength are derived. It is found that the surface acoustic phonon makes a significant contribution to ground-state energy of a two-dimensional polaron in magnetic field.