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http://hdl.handle.net/2445/9768
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Tarrach, R., 1948- | cat |
dc.contributor.author | Valentí i Vall, M. Roser | cat |
dc.date.accessioned | 2009-10-22T10:20:54Z | - |
dc.date.available | 2009-10-22T10:20:54Z | - |
dc.date.issued | 1990 | cat |
dc.identifier.issn | 0163-1829 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/9768 | - |
dc.description.abstract | We present a very simple but fairly unknown method to obtain exact lower bounds to the ground-state energy of any Hamiltonian that can be partitioned into a sum of sub-Hamiltonians. The technique is applied, in particular, to the two-dimensional spin-1/2 antiferromagnetic Heisenberg model. Reasonably good results are easily obtained and the extension of the method to other systems is straightforward. | eng |
dc.format.extent | 3 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.41.9611 | cat |
dc.relation.ispartof | Physical Review B, 1990, vol. 41, núm. 13, p. 9611-9613. | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.41.9611 | - |
dc.rights | (c) The American Physical Society, 1990 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Superconductors | cat |
dc.subject.classification | Magnetisme | cat |
dc.subject.other | Superconductors | eng |
dc.subject.other | Magnetism | eng |
dc.title | Exact lower bounds to the ground-state energy of spin systems: The two-dimensional S=1/2 antiferromagnetic Heisenberg model | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 57979 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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