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Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms

Lee, Tony E. and Häffner, H. and Cross, M. C. (2011) Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms. Physical Review A, 84 (3). Art. No. 031402. ISSN 1050-2947. https://resolver.caltech.edu/CaltechAUTHORS:20110926-112200458

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Abstract

We study a driven-dissipative system of atoms in the presence of laser excitation to a Rydberg state and spontaneous emission. The atoms interact via the blockade effect, whereby an atom in the Rydberg state shifts the Rydberg level of neighboring atoms. We use mean-field theory to study how the Rydberg population varies in space. As the laser frequency changes, there is a continuous transition between the uniform and antiferromagnetic phases. The nonequilibrium nature also leads to a novel oscillatory phase and bistability between the uniform and antiferromagnetic phases.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevA.84.031402DOIUNSPECIFIED
http://pra.aps.org/abstract/PRA/v84/i3/e031402PublisherUNSPECIFIED
Additional Information:© 2011 American Physical Society. Received 5 April 2011; revised manuscript received 19 July 2011; published 12 September 2011. We thank A. Daley and G. Refael for useful discussions. This work was supported by NSF Grant No. DMR-1003337.
Funders:
Funding AgencyGrant Number
NSFDMR-1003337
Issue or Number:3
Classification Code:PACS: 32.80.Rm, 42.50.Nn, 42.65.Pc
Record Number:CaltechAUTHORS:20110926-112200458
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110926-112200458
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25436
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Sep 2011 15:53
Last Modified:03 Oct 2019 03:06

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