skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms

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.

Authors:
;  [1];  [2]
  1. Department of Physics, California Institute of Technology, Pasadena, California 91125 (United States)
  2. Department of Physics, University of California, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
22068613
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANTIFERROMAGNETISM; ATOMS; EMISSION; EXCITATION; LASERS; MEAN-FIELD THEORY; PHASE TRANSFORMATIONS; RYDBERG STATES

Citation Formats

Lee, Tony E., Cross, M. C., and Haeffner, H. Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.031402.
Lee, Tony E., Cross, M. C., & Haeffner, H. Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms. United States. doi:10.1103/PHYSREVA.84.031402.
Lee, Tony E., Cross, M. C., and Haeffner, H. Thu . "Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms". United States. doi:10.1103/PHYSREVA.84.031402.
@article{osti_22068613,
title = {Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms},
author = {Lee, Tony E. and Cross, M. C. and Haeffner, H.},
abstractNote = {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.},
doi = {10.1103/PHYSREVA.84.031402},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}