Decoherence Dynamics in LowDimensional Cold Atom Interferometers
Abstract
We report on a study of the dynamics of decoherence of a matterwave interferometer, consisting of a pair of lowdimensional cold atom condensates at finite temperature. We identify two distinct regimes in the time dependence of the coherence factor of the interferometer: quantum and classical. Explicit analytical results are obtained in both regimes. In particular, in the twodimensional case in the classical (long time) regime, we find that the dynamics of decoherence is universal, exhibiting a powerlaw decay with an exponent, proportional to the ratio of the temperature to the KosterlitzThouless temperature of a single 2D condensate. In the onedimensional case in the classical regime we find a universal nonanalytic time dependence of decoherence, which is a consequence of the nonhydrodynamic nature of damping in 1D liquids.
 Authors:
 Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)
 Publication Date:
 OSTI Identifier:
 20951363
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 20; Other Information: DOI: 10.1103/PhysRevLett.98.200404; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; CONDENSATES; INTERFEROMETERS; ONEDIMENSIONAL CALCULATIONS; QUANTUM DECOHERENCE; TIME DEPENDENCE; TWODIMENSIONAL CALCULATIONS
Citation Formats
Burkov, A. A., Lukin, M. D., and Demler, Eugene. Decoherence Dynamics in LowDimensional Cold Atom Interferometers. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVLETT.98.200404.
Burkov, A. A., Lukin, M. D., & Demler, Eugene. Decoherence Dynamics in LowDimensional Cold Atom Interferometers. United States. doi:10.1103/PHYSREVLETT.98.200404.
Burkov, A. A., Lukin, M. D., and Demler, Eugene. Fri .
"Decoherence Dynamics in LowDimensional Cold Atom Interferometers". United States.
doi:10.1103/PHYSREVLETT.98.200404.
@article{osti_20951363,
title = {Decoherence Dynamics in LowDimensional Cold Atom Interferometers},
author = {Burkov, A. A. and Lukin, M. D. and Demler, Eugene},
abstractNote = {We report on a study of the dynamics of decoherence of a matterwave interferometer, consisting of a pair of lowdimensional cold atom condensates at finite temperature. We identify two distinct regimes in the time dependence of the coherence factor of the interferometer: quantum and classical. Explicit analytical results are obtained in both regimes. In particular, in the twodimensional case in the classical (long time) regime, we find that the dynamics of decoherence is universal, exhibiting a powerlaw decay with an exponent, proportional to the ratio of the temperature to the KosterlitzThouless temperature of a single 2D condensate. In the onedimensional case in the classical regime we find a universal nonanalytic time dependence of decoherence, which is a consequence of the nonhydrodynamic nature of damping in 1D liquids.},
doi = {10.1103/PHYSREVLETT.98.200404},
journal = {Physical Review Letters},
number = 20,
volume = 98,
place = {United States},
year = {Fri May 18 00:00:00 EDT 2007},
month = {Fri May 18 00:00:00 EDT 2007}
}

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