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Proceedings Paper

Scaling, entanglement, and quantum phase transitions
Author(s): Andreas Osterloh; Luigi Amico; G. Falci; Rosario Fazio
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Paper 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.

Paper Details

Date Published: 23 July 2003
PDF: 7 pages
Proc. SPIE 5128, First International Symposium on Quantum Informatics, (23 July 2003); doi: 10.1117/12.517861
Show Author Affiliations
Andreas Osterloh, National Enterprise for nanoScience and nanoTechnology/INFM (Italy)
Univ. di Catania (Italy)
Luigi Amico, National Enterprise for nanoScience and nanoTechnology/INFM (Italy)
Univ. di Catania (Italy)
G. Falci, National Enterprise for nanoScience and nanoTechnology/INFM (Italy)
Univ. di Catania (Italy)
Rosario Fazio, National Enterprise for nanoScience and nanoTechnology/INFM (Italy)
Scuola Normale Superiore Pisa (Italy)


Published in SPIE Proceedings Vol. 5128:
First International Symposium on Quantum Informatics
Yuri I. Ozhigov, Editor(s)

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