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On fermions in a plane coupled to the nonlinear sigma model

โœ Scribed by Adrian Neagu


Book ID
104341480
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
299 KB
Volume
237
Category
Article
ISSN
0378-4371

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A Coupled-Cluster Formulation of Hamilto
โœ N.E. Ligterink; N.R. Walet; R.F. Bishop ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 591 KB

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