Entanglement and quantum order parameters

Brandão, Fernando G. S. L. (2005) Entanglement and quantum order parameters. New Journal of Physics, 7 . Art. No. 254. ISSN 1367-2630. doi:10.1088/1367-2630/7/1/254. https://resolver.caltech.edu/CaltechAUTHORS:20160525-145304920

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Abstract

We show that the quantum order parameters (QOPs) associated with the transitions between a normal conductor and a superconductor in the BCS and η-pairing models and between a Mott-insulator and a superfluid in the Bose–Hubbard model are directly related to the amount of entanglement existent in the ground state of each system. This connection gives a physical meaningful interpretation to these QOP, which shows the intrinsically quantum nature of the phase transitions considered.

Item Type:

Article

Related URLs:

URL	URL Type	Description
http://dx.doi.org/10.1088/1367-2630/7/1/254	DOI	Article
http://iopscience.iop.org/article/10.1088/1367-2630/7/1/254/meta	Publisher	Article
http://arxiv.org/abs/quant-ph/0509049	arXiv	Discussion Paper

ORCID:

Author	ORCID
Brandão, Fernando G. S. L.	0000-0003-3866-9378

Alternate Title:

Entanglement as a quantum order parameter

Additional Information:

© 2005 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA version 3.0) licence. Received 13 October 2005; Published 16 December 2005. The author would like to thank Jens Eisert and Martin Plenio for helpful comments on the manuscript and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for financial support.

Funders:

Funding Agency	Grant Number
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)	UNSPECIFIED

DOI:

10.1088/1367-2630/7/1/254

Record Number:

CaltechAUTHORS:20160525-145304920

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20160525-145304920

Official Citation:

Fernando G S L Brandão 2005 New J. Phys. 7 254

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

67364

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

26 May 2016 19:37

Last Modified:

12 Jul 2022 19:48

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