Path Resummations and the Fermion Sign Problem.

Authors :: Beig, R.
Beiglböck, W.
Domcke, W.
Englert, B.-G.
Frisch, U.
Hänggi, P.
Hasinger, G.
Hepp, K.
Hillebrandt, W.
Imboden, D.
Jaffe, R. L.
Lipowsky, R.
Löhneysen, H. v.
Ojima, I.
Sornette, D.
Theisen, S.
Weise, W.
Wess, J.
Zittartz, J.
Ferrario, Mauro
Source :: Computer Simulations in Condensed Matter Systems: From Materials to Chemical Biology Volume 1; 2006, p685-704, 20p
Publication Year :: 2006
Abstract: We review a recent method we have developed for Fermion quantum Monte Carlo. By using combinatorial arguments to perform resummations over paths, we reformulate the stochastic problem of sampling paths in terms of sampling "graphs", which are much better behaved with regards sign-cancellation problems encountered in path-integral simulations of Fermions. Detailed mathematical derivations of the new results are presented. [ABSTRACT FROM AUTHOR]

Language :: English
ISBNs :: 9783540352709
Database :: Supplemental Index
Journal :: Computer Simulations in Condensed Matter Systems: From Materials to Chemical Biology Volume 1
Publication Type :: Book
Accession number :: 33100283
Full Text :: https://doi.org/10.1007/3-540-35273-2_19