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Path integral Monte Carlo using multigrid techniques

✍ Scribed by Wolfhard Janke; Tilman Sauer

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 642 KB
Volume: 201
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)85108-z

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✦ Synopsis

simulations of euclidean path integrals based on local update algorithms are severely hampered by diverging autocorrelation times T in the continuum limit. If c denotes the discretization parameter we verify for simulations with the standard Metropolis algorithm the theoretically expected behaviour TIC ( I/t)'. We then demonstrate numerically that this problem can be overcome by using mathematically very well-founded multigrid techniques.

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