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@ARTICLE{Richter:850132,
author = {Richter, Jonas and Jin, Fengping and De Raedt, Hans and
Michielsen, Kristel and Gemmer, Jochen and Steinigeweg,
Robin},
title = {{R}eal-time dynamics of typical and untypical states in
nonintegrable systems},
journal = {Physical review / B},
volume = {97},
number = {17},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2018-04210},
pages = {174430},
year = {2018},
abstract = {Understanding (i) the emergence of diffusion from truly
microscopic principles continues to be a major challenge in
experimental and theoretical physics. At the same time,
isolated quantum many-body systems have experienced an
upsurge of interest in recent years. Since in such systems
the realization of a proper initial state is the only
possibility to induce a nonequilibrium process,
understanding (ii) the largely unexplored role of the
specific realization is vitally important. Our work reports
a substantial step forward and tackles the two issues (i)
and (ii) in the context of typicality, entanglement as well
as integrability and nonintegrability. Specifically, we
consider the spin-1/2 XXZ chain, where integrability can be
broken due to an additional next-nearest neighbor
interaction, and study the real-time and real-space dynamics
of nonequilibrium magnetization profiles for a class of pure
states. Summarizing our main results, we show that
signatures of diffusion for strong interactions are equally
pronounced for the integrable and nonintegrable case. In
both cases, we further find a clear difference between the
dynamics of states with and without internal randomness. We
provide an explanation of this difference by a detailed
analysis of the local density of states.},
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 $(jjsc09_20180501)$},
pid = {G:(DE-HGF)POF3-511 / $G:(DE-Juel1)jjsc09_20180501$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000433286800006},
doi = {10.1103/PhysRevB.97.174430},
url = {https://juser.fz-juelich.de/record/850132},
}