Publication
Title
Feynmans path-integral polaron treatment approached using time-ordered operator calculus
Author
Abstract
The Feynman all-coupling variational approach for the polaron is re-formulated and extended using the Hamiltonian formalism with time-ordered operator calculus. Special attention is devoted to the excited polaron states. The energy levels and the inverse lifetimes of the excited polaron states are, for the first time, explicitly derived within this all-coupling approach. Remarkable agreement of the obtained transition energies with the peak positions of the polaron optical conductivity calculated using diagrammatic quantum Monte Carlo is obtained.
Language
English
Source (journal)
Solid state communications. - New York, N.Y.
Publication
New York, N.Y. : 2011
ISSN
0038-1098
Volume/pages
151:2(2011), p. 144-147
ISI
000286787200012
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 17.05.2011
Last edited 19.06.2017
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