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Title: Temporal Response of Nonequilibrium Correlated Electrons

Abstract

In this work we examine the time-resolved, instantaneous current response for the spinless Falicov-Kimball model at half-filling, on both sides of the Mott-Hubbard metal-insulator transition, driven by a strong electric field pump pulse. The results are obtained using an exact, nonequilibrium, many-body impurity solution specifically designed to treat the out-of-equilibrium evolution of electrons in time-dependent fields. We provide a brief introduction to the method and its computational details. We find that the current develops Bloch oscillations, similar to the case of DC driving fields, with an additional amplitude modulation, characterized by beats and induced by correlation effects. Correlations primarily manifest themselves through an overall reduction in magnitude and shift in the onset time of the current response with increasing interaction strength.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
992954
Report Number(s):
SLAC-PUB-14169
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Comput. Phys. Commun. 182:109-111,2011
Additional Journal Information:
Journal Name: Comput. Phys. Commun. 182:109-111,2011
Country of Publication:
United States
Language:
English
Subject:
COMP, MATSCI, OTHER

Citation Formats

Moritz, Brian, /SLAC /North Dakota U., Devereaux, T.P., /SLAC /Stanford U., Geballe Lab, Freericks, J.K., and /Georgetown U. Temporal Response of Nonequilibrium Correlated Electrons. United States: N. p., 2010. Web.
Moritz, Brian, /SLAC /North Dakota U., Devereaux, T.P., /SLAC /Stanford U., Geballe Lab, Freericks, J.K., & /Georgetown U. Temporal Response of Nonequilibrium Correlated Electrons. United States.
Moritz, Brian, /SLAC /North Dakota U., Devereaux, T.P., /SLAC /Stanford U., Geballe Lab, Freericks, J.K., and /Georgetown U. Thu . "Temporal Response of Nonequilibrium Correlated Electrons". United States. https://www.osti.gov/servlets/purl/992954.
@article{osti_992954,
title = {Temporal Response of Nonequilibrium Correlated Electrons},
author = {Moritz, Brian and /SLAC /North Dakota U. and Devereaux, T.P. and /SLAC /Stanford U., Geballe Lab and Freericks, J.K. and /Georgetown U.},
abstractNote = {In this work we examine the time-resolved, instantaneous current response for the spinless Falicov-Kimball model at half-filling, on both sides of the Mott-Hubbard metal-insulator transition, driven by a strong electric field pump pulse. The results are obtained using an exact, nonequilibrium, many-body impurity solution specifically designed to treat the out-of-equilibrium evolution of electrons in time-dependent fields. We provide a brief introduction to the method and its computational details. We find that the current develops Bloch oscillations, similar to the case of DC driving fields, with an additional amplitude modulation, characterized by beats and induced by correlation effects. Correlations primarily manifest themselves through an overall reduction in magnitude and shift in the onset time of the current response with increasing interaction strength.},
doi = {},
journal = {Comput. Phys. Commun. 182:109-111,2011},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {8}
}