๐”– Bobbio Scriptorium
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Blockspin cluster algorithms for quantum spin systems

โœ Scribed by U.-J. Wiese; H.-P. Ying


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
519 KB
Volume
168
Category
Article
ISSN
0375-9601

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Functional integral methods for quantum
โœ S Leibler; H Orland ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 660 KB

The partition function of quantum spin systems is represented by a functional integral over "time"-dependent magnetic fields. It is evaluated in the saddle-point approximation. In this way, the excitations of the system are derived from first principles, and their interactions are obtained. ## 1. I