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. Entanglement can be classified in the framework of the scaling theory of phase transition. There is a profound difference between the classical correlations, whose correlation lenght diverges at the phase transition, and non-local quantum correlations that remain, in general, short ranged.
Titolo: | Scaling, Entanglement and Quantum Phase Transitions |
Autori interni: | |
Data di pubblicazione: | 2002 |
Handle: | http://hdl.handle.net/20.500.11769/72868 |
ISBN: | 0-7354-0147-0 |
Appare nelle tipologie: | 2.1 Contributo in volume (Capitolo o Saggio) |
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