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The shifted coupled cluster method. A new approach to hamiltonian lattice gauge theories

✍ Scribed by C.H. Llewellyn Smith; N.J. Watson


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
517 KB
Volume
302
Category
Article
ISSN
0370-2693

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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