| Bold diagrammatic Monte Carlo technique: when the sign problem is welcome. | |
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MedLine Citation:
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PMID: 18233498 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We introduce a Monte Carlo scheme for sampling a bold-line diagrammatic series specifying an unknown function in terms of itself. The range of convergence of this bold(-line) diagrammatic Monte Carlo (BMC) technique is significantly broader than that of a simple iterative scheme for solving integral equations. With the BMC technique, a moderate "sign problem" turns out to be an advantage in terms of the convergence of the process. For an illustrative purpose, we solve the one-particle s-scattering problem. As an important application, we obtain the T matrix for a Fermi polaron (one spin-down particle interacting with the spin-up fermionic sea). |
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Authors:
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Nikolay Prokof'ev; Boris Svistunov |
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Publication Detail:
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Type: Journal Article Date: 2007-12-18 |
Journal Detail:
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Title: Physical review letters Volume: 99 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2007 Dec |
Date Detail:
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Created Date: 2008-01-31 Completed Date: 2008-03-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 250201 Citation Subset: - |
Affiliation:
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Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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