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Title: Quantum stirring as a probe of superfluidlike behavior in interacting one-dimensional Bose gases

Abstract

We propose quantum stirring with a laser beam as a probe of superfluidlike behavior for a strongly interacting one-dimensional Bose gas confined to a ring. Within the Luttinger liquid theory framework, we calculate the fraction of stirred particles per period as a function of the stirring velocity, the interaction strength, and the coupling between the stirring beam and the bosons. We show that the stirred fraction is never zero due to the presence of strong quantum fluctuations in one dimension, implying imperfect superfluid behavior under transport. Some experimental issues on quantum stirring in ring-trapped condensates are discussed.

Authors:
 [1];  [2]; ;  [3]
  1. Dipartimento di Fisica 'E.R. Caianiello', Unita CNISM, Universita di Salerno, I-84081 Baronissi (Italy)
  2. (Italy)
  3. Laboratoire de Physique et Modelisation des Mileux Condenses, CNRS, Universite Joseph Fourier, BP 166, 38042 Grenoble (France)
Publication Date:
OSTI Identifier:
21287006
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 79; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevB.79.172505; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BEAMS; BOSE-EINSTEIN GAS; BOSONS; COMPUTERIZED SIMULATION; CONDENSATES; COUPLING; FLUCTUATIONS; INTERACTIONS; LASER RADIATION; LIQUIDS; ONE-DIMENSIONAL CALCULATIONS; STIRRING; SUPERFLUIDITY; TRAPPING; VELOCITY

Citation Formats

Citro, R., Laboratorio SuperMat, CNR-INFM, I-84081 Baronissi, Minguzzi, A., and Hekking, F. W. J.. Quantum stirring as a probe of superfluidlike behavior in interacting one-dimensional Bose gases. United States: N. p., 2009. Web. doi:10.1103/PHYSREVB.79.172505.
Citro, R., Laboratorio SuperMat, CNR-INFM, I-84081 Baronissi, Minguzzi, A., & Hekking, F. W. J.. Quantum stirring as a probe of superfluidlike behavior in interacting one-dimensional Bose gases. United States. doi:10.1103/PHYSREVB.79.172505.
Citro, R., Laboratorio SuperMat, CNR-INFM, I-84081 Baronissi, Minguzzi, A., and Hekking, F. W. J.. Fri . "Quantum stirring as a probe of superfluidlike behavior in interacting one-dimensional Bose gases". United States. doi:10.1103/PHYSREVB.79.172505.
@article{osti_21287006,
title = {Quantum stirring as a probe of superfluidlike behavior in interacting one-dimensional Bose gases},
author = {Citro, R. and Laboratorio SuperMat, CNR-INFM, I-84081 Baronissi and Minguzzi, A. and Hekking, F. W. J.},
abstractNote = {We propose quantum stirring with a laser beam as a probe of superfluidlike behavior for a strongly interacting one-dimensional Bose gas confined to a ring. Within the Luttinger liquid theory framework, we calculate the fraction of stirred particles per period as a function of the stirring velocity, the interaction strength, and the coupling between the stirring beam and the bosons. We show that the stirred fraction is never zero due to the presence of strong quantum fluctuations in one dimension, implying imperfect superfluid behavior under transport. Some experimental issues on quantum stirring in ring-trapped condensates are discussed.},
doi = {10.1103/PHYSREVB.79.172505},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 17,
volume = 79,
place = {United States},
year = {2009},
month = {5}
}