Computer Simulations of Quantum Chains

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We report recent progress in computer simulations of quantum systems described in the path-integral formulation. For the example of the $ϕ^4$ quantum chain we show that the accuracy of the simulation may greatly be enhanced by a combination of multigrid update techniques with a refined discretization scheme. This allows us to assess the accuracy of a variational approximation.
5 pages, LaTeX + 2 postscript figures. Talk presented by TS at "Path Integrals from meV to MeV: Dubna '96". See also http://www.cond-mat.physik.uni-mainz.de/~janke/doc/home_janke.html

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/27691

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9609278
 http://arxiv.org/abs/cond-mat/9609278

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arXiv