Entanglement, fractional magnetization and long-range interactions
arXiv:1209.3898 · doi:10.1103/PhysRevB.87.035114
Abstract
Based on the theory of Matrix Product States, we give precise statements and complete analytical proofs of the following claim: a large fractionalization in the magnetization or the need of long-range interactions imply large entanglement in the state of a quantum spin chain.
11 pages, 1 figure
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