Please use this identifier to cite or link to this item: https://doi.org/10.1088/1367-2630/8/8/140
Title: Detecting entanglement with a thermometer
Authors: Anders, J.
Kaszlikowski, D. 
Lunkes, C.
Ohshima, T.
Vedral, V. 
Issue Date: 18-Aug-2006
Source: Anders, J., Kaszlikowski, D., Lunkes, C., Ohshima, T., Vedral, V. (2006-08-18). Detecting entanglement with a thermometer. New Journal of Physics 8 : -. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/8/8/140
Abstract: We present a general argument showing that the temperature as well as other thermodynamical state variables can qualify as entanglement witnesses (EWs) for spatial entanglement. This holds for a variety of systems and we exemplify our ideas using a simple free non-interacting bosonic gas. We find that entanglement can exist at arbitrarily high temperatures, provided that we can probe smaller and smaller regions of space. We then discuss the relationship between the occurrence of Bose-Einstein condensation and our conditions for the presence of entanglement and compare the respective critical temperatures. We close with a short discussion of the idea of seeing entanglement as a macroscopic property in thermodynamical systems and its possible relation to phase transitions in general. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Source Title: New Journal of Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96183
ISSN: 13672630
DOI: 10.1088/1367-2630/8/8/140
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

26
checked on Mar 29, 2018

Page view(s)

39
checked on Apr 20, 2018

Google ScholarTM

Check

Altmetric


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