Please use this identifier to cite or link to this item: https://doi.org/10.1088/1367-2630/12/2/025017
DC FieldValue
dc.titleEntanglement at the quantum phase transition in a harmonic lattice
dc.contributor.authorRieper, E.
dc.contributor.authorAnders, J.
dc.contributor.authorVedral, V.
dc.date.accessioned2014-10-16T09:23:58Z
dc.date.available2014-10-16T09:23:58Z
dc.date.issued2010-02-26
dc.identifier.citationRieper, E., Anders, J., Vedral, V. (2010-02-26). Entanglement at the quantum phase transition in a harmonic lattice. New Journal of Physics 12 : -. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/12/2/025017
dc.identifier.issn13672630
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96483
dc.description.abstractThe entanglement properties of phase transition in a twodimensional harmonic lattice, similar to the one observed in recent ion trap experiments, are discussed for both finite number of particles and thermodynamical limit. We show that for the ground state at the critical value of the trapping potential, two entanglement measures, the negativity between two neighbouring sites and the block entropy for blocks of size 1, 2 and 3, change abruptly. Entanglement thus indicates quantum phase transitions in general, not only in the finite-dimensional case considered inWu et al (2004 Phys. Rev. Lett. 93 250404). Finally, we consider the thermal state and compare its exact entanglement with a temperature entanglement witness introduced in Anders (2008 Phys. Rev. A 77 062102). © IOP Publishing Ltd. and Deutsche Physikalische Gesellschaft.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1088/1367-2630/12/2/025017
dc.description.sourcetitleNew Journal of Physics
dc.description.volume12
dc.description.page-
dc.identifier.isiut000275228200017
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Mar 27, 2020

WEB OF SCIENCETM
Citations

10
checked on Mar 19, 2020

Page view(s)

49
checked on Mar 29, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.