ISSN:
1434-6036
Keywords:
PACS. 71.38.+i Polarons and electron-phonon interactions - 63.20.Kr Phonon-electron and phonon-phonon interactions
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The Feynman-Haken variational path integral theory is, for the first time, generalized to calculate the ground-state energy of an electron coupled simultaneously to a Coulomb potential and to a longitudinal-optical (LO) phonon field in parabolic quantum wires. It is shown that the polaronic correction to the ground-state energy is more sensitive to the electron-phonon coupling constant than the Coulomb binding parameter and monotonically stronger as the effective wire radius decreases. We apply our calculations to several semiconductor quantum wires and find that the polaronic correction can be considerably large.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1088/0953-8984/11/1/006