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

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

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 hierar...

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Veröffentlicht in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2014-12, Vol.87 (12), Article 289
Hauptverfasser: Qin, Jingbo, Jie, Quanlin, Fan, Zhuo
Format: Artikel
Sprache:eng
Schlagworte:
Complex Systems
Condensed Matter Physics
Fluid- and Aerodynamics
Physics
Physics and Astronomy
Regular Article
Solid State Physics
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Zusammenfassung: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.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2014-50054-0