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Entanglement Theory Quantum Correlations
Classification of entanglement and quantum phase transition in XX model
arXiv
Authors: Ting Zhang, Pinx-Xing Chen, Wei-Tao Liu, Cheng-Zu Li
Year
2012
Paper ID
8525
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
N/A
Abstract
We study the relation between entanglement and quantum phase transition (QPT) from a new perspective. Motivated by one's intuition: QPT is characterized by the change of the ground-state structure, while entangled states belong to different classes have different structures, we conjecture that QPT occurs as the class of ground-state entanglement changes and prove it in XX model. Despite the classification of multipartite entanglement is yet unresolved, we proposed a new method to judge whether two many-body states belong to the same entanglement class.
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- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
- It adds a 2012 reference point for readers tracking recent quantum research.
- We study the relation between entanglement and quantum phase transition (QPT) from a new perspective.
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