Scaling, Entanglement, and Quantum Phase Transitions
نویسندگان
چکیده
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 transitions. There is a profound differences between the classical correlations, whose correlation lenght diverges at the phase transition, and non-local quantum correlations that in general remain short ranged. Typeset using REVTEX
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تاریخ انتشار 2002