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@ARTICLE{Steinigeweg:837962,
author = {Steinigeweg, R. and Jin, F. and De Raedt, H. and
Michielsen, K. and Gemmer, J.},
title = {{C}harge diffusion in the one-dimensional {H}ubbard model},
journal = {Physical review / E},
volume = {96},
number = {2},
issn = {2470-0045},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2017-06723},
pages = {020105},
year = {2017},
abstract = {We study the real-time and real-space dynamics of charge in
the one-dimensional Hubbard model in the limit of high
temperatures. To this end, we prepare pure initial states
with sharply peaked density profiles and calculate the time
evolution of these nonequilibrium states, by using numerical
forward-propagation approaches to chains as long as 20
sites. For a class of typical states, we find excellent
agreement with linear-response theory and unveil the
existence of remarkably clean charge diffusion in the regime
of strong particle-particle interactions. We additionally
demonstrate that, in the half-filling sector, this diffusive
behavior does not depend on certain details of our initial
conditions, i.e., it occurs for five different realizations
with random and nonrandom internal degrees of freedom,
single and double occupation of the central site, and
displacement of spin-up and spin-down particles.},
cin = {JSC / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)JSC-20090406 / $I:(DE-82)080012_20140620$},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511) / Manipulation and dynamics of quantum spin
systems $(jjsc09_20120501)$},
pid = {G:(DE-HGF)POF3-511 / $G:(DE-Juel1)jjsc09_20120501$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000408513700002},
pubmed = {pmid:28950562},
doi = {10.1103/PhysRevE.96.020105},
url = {https://juser.fz-juelich.de/record/837962},
}