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Scaling of Entanglement close to a Quantum Phase Transitions | | A. Osterloh
; L. Amico
; G. Falci
; R. Fazio
; | | Date: |
5 Feb 2002 | | Journal: | Nature 416, 608 (2002) | | Subject: | Quantum Physics; Strongly Correlated Electrons | quant-ph cond-mat.str-el | | Abstract: | In this Letter we discuss the entanglement near a quantum phase transition by analyzing the properties of the concurrence for a class of exactly solvable models in one dimension. We find that entanglement can be classified in the framework of scaling theory. Further, we reveal a profound difference between classical correlations and the non-local quantum correlation, entanglement: the correlation length diverges at the phase transition, whereas entanglement in general remains short ranged. | | Source: | arXiv, quant-ph/0202029 | | Services: | Forum | Review | PDF | Favorites | |
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