Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published October 2006 | Published
Journal Article Open

Entanglement quantifiers, entanglement crossover and phase transitions

Abstract

Entanglement has been widely used as a tool for the investigation of phase transitions (PTs). However, analysing several entanglement measures in the two-qubit context, we see that distinct entanglement quantifiers can indicate different orders for the same PT. Examples are given for different Hamiltonians. This leaves open the possibility of addressing different orders to the same PT if entanglement is used as an order parameter. Moving on to the multipartite context, we show necessary and sufficient conditions for a family of entanglement monotones to confirm quantum PTs.

Additional Information

© 2006 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Articles submitted prior to November 2012 the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA version 3.0) licence. Received 16 March 2006. Published 27 October 2006. We thank R Dickman and V Vedral for valuable discussions on the theme. Financial support from PRPq-UFMG and CNPq-Brazil is also acknowledged. This work is part of the Brazilian Millennium Project for Quantum Information.

Attached Files

Published - njp6_10_260.pdf

Files

njp6_10_260.pdf
Files (188.0 kB)
Name Size Download all
md5:1995f3580eeb72a3013dc044f25a5c93
188.0 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023