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Quasidegenerate coupled-cluster approach with hermitian model hamiltonian

✍ Scribed by Vladimír Kvasnička


Book ID
104581065
Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
469 KB
Volume
24
Category
Article
ISSN
0020-7608

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A Coupled-Cluster Formulation of Hamilto
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We apply the coupled cluster method (CCM) to the Hamiltonian version of the latticised O(4) nonlinear sigma model. The method, which was initially developed for the accurate description of quantum many-body systems, gives rise to two distinct approximation schemes. These approaches are compared with