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@ARTICLE{Lippert:860331,
author = {Lippert, Thomas},
title = {{L}attice quantum electrodynamics near the phase
transition},
journal = {International journal of modern physics / C Computational
physics and physical computation C},
volume = {04},
number = {01},
issn = {1793-6586},
address = {Singapore [u.a.]},
publisher = {World Scientific},
reportid = {FZJ-2019-01106},
pages = {163 - 179},
year = {1993},
abstract = {Numerical simulations of quantum electrodynamics near the
phase transition suffer from an extreme slowing down on
large lattices. The two leading terms of the decaying
autocorrelation function can be attributed to the influence
of first-order phase transition effects, called
supercritical slowing down, and second-order phase
transition effects, called critical slowing down,
respectively. We show that we can bypass supercritical
slowing down using a conventional local updating algorithm
based on a phenomenological weight ratio fixing method.As
for critical slowing down, we apply a new global multi-scale
updating algorithm which removes critical slowing down
completely. We compare the structure of the local vs. the
global algorithm as well as their implementation on the
Connection Machine CM-2, analyze their computational
complexity and present actual performance measurements.},
ddc = {530},
typ = {PUB:(DE-HGF)16},
doi = {10.1142/S0129183193000185},
url = {https://juser.fz-juelich.de/record/860331},
}