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@ARTICLE{Peng:836893,
author = {Peng, H. L. and Schober, H. R. and Voigtmann, Th.},
title = {{V}elocity autocorrelation function in supercooled liquids:
{L}ong-time tails and anomalous shear-wave propagation},
journal = {Physical review / E},
volume = {94},
number = {6},
issn = {1063-651X},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2017-05925},
pages = {060601 (R)},
year = {2016},
note = {Web-Year 2016},
abstract = {Molecular dynamic simulations are performed to reveal the
long-time behavior of the velocity autocorrelation function
(VAF) by utilizing the finite-size effect in a Lennard-Jones
binary mixture. Whereas in normal liquids the classical
positive t−3/2 long-time tail is observed, we find in
supercooled liquids a negative tail. It is strongly
influenced by the transfer of the transverse current wave
across the period boundary. The t−5/2 decay of the
negative long-time tail is confirmed in the spectrum of VAF.
Modeling the long-time transverse current within a
generalized Maxwell model, we reproduce the negative
long-time tail of the VAF, but with a slower algebraic t−2
decay.},
cin = {PGI-2 / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)PGI-2-20110106 / $I:(DE-82)080012_20140620$},
pnm = {144 - Controlling Collective States (POF3-144) / Dynamics
of glasses and their melts $(jiff07_20160501)$},
pid = {G:(DE-HGF)POF3-144 / $G:(DE-Juel1)jiff07_20160501$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000400692500001},
doi = {10.1103/PhysRevE.94.060601},
url = {https://juser.fz-juelich.de/record/836893},
}