Valence bond and von Neumann entanglement entropy in Heisenberg ladders.
作者： Ann B. Kallin , Iván González , Matthew B. Hastings , Roger G. Melko
DOI: 10.1103/PHYSREVLETT.103.117203
关键词:
摘要: … A is rectangular, cutting a multileg ladder cleanly across all … of legs in the ladder N. We choose the region A to contain 2N … phases or studying universality at quantum phase transitions. …
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