dorsal/arxiv
View SchemaMonte Carlo methods for the nuclear shell model
| Authors | C. W. Johnson, S. E. Koonin, G. H. Lang, W. E. Ormand |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9210014 |
| URL | https://arxiv.org/abs/nucl-th/9210014 |
| DOI | 10.1103/PhysRevLett.69.3157 |
| Journal | Phys.Rev.Lett.69:3157-3160,1992 |
Abstract
We present novel Monte Carlo methods for treating the interacting shell model that allow exact calculations much larger than those heretofore possible. The two-body interaction is linearized by an auxiliary field; Monte Carlo evaluation of the resulting functional integral gives ground-state or thermal expectation values of few-body operators. The ``sign problem'' generic to quantum Monte Carlo calculations is absent in a number of cases. We discuss the favorable scaling of these methods with nucleon numb er and basis size and their suitability to parallel computation.
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"abstract": "We present novel Monte Carlo methods for treating the interacting shell model\nthat allow exact calculations much larger than those heretofore possible. The\ntwo-body interaction is linearized by an auxiliary field; Monte Carlo\nevaluation of the resulting functional integral gives ground-state or thermal\nexpectation values of few-body operators. The ``sign problem\u0027\u0027 generic to\nquantum Monte Carlo calculations is absent in a number of cases. We discuss the\nfavorable scaling of these methods with nucleon numb er and basis size and\ntheir suitability to parallel computation.",
"arxiv_id": "nucl-th/9210014",
"authors": [
"C. W. Johnson",
"S. E. Koonin",
"G. H. Lang",
"W. E. Ormand"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevLett.69.3157",
"journal_ref": "Phys.Rev.Lett.69:3157-3160,1992",
"title": "Monte Carlo methods for the nuclear shell model",
"url": "https://arxiv.org/abs/nucl-th/9210014"
},
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