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1. An efficient implementation of the hierarchical mean-field theory with large block.

Author

Qin, Jingbo, Jie, Quanlin, and Fan, Zhuo

Subjects
*MEAN field theory, *QUANTUM spin models, *QUANTUM states, *LATTICE models (Statistical physics), *SUPERPOSITION principle (Physics), *NUMERICAL analysis
Abstract

We present an efficient implementation of the hierarchical mean-field theory with large block in quantum spin systems. The wave function is a product of the large block states. Each large block state is a superposition of products of small block states. Our result is very close to that of the hierarchical mean-field in a numerical cost effective way. We test our method on a frustrated spin lattice. [ABSTRACT FROM AUTHOR]

Published
2014
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