Scaling, entanglement, and quantum phase transitions

Andreas Osterloh; Luigi Amico; G. Falci; Rosario Fazio

doi:10.1117/12.517861

23 July 2003 Scaling, entanglement, and quantum phase transitions

Andreas Osterloh, Luigi Amico, G. Falci, Rosario Fazio

Proceedings Volume 5128, First International Symposium on Quantum Informatics; (2003) https://doi.org/10.1117/12.517861
Event: First International Symposium on Quantum Informatics, 2002, Lipki, Russian Federation

Abstract

In this paper 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 dimenion. 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 length diverges at the phase transiton, and non-local quantum correlations that remain, in general, short ranged.

Citation Download Citation

Andreas Osterloh, Luigi Amico, G. Falci, and Rosario Fazio "Scaling, entanglement, and quantum phase transitions", Proc. SPIE 5128, First International Symposium on Quantum Informatics, (23 July 2003); https://doi.org/10.1117/12.517861

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