Ground-state properties of a one-dimensional system of dipoles

  • A. S. Arkhipov
  • G. E. Astrakharchik
  • A. V. Belikov
  • Yu. E. Lozovik
Condensed Matter


A one-dimensional (1D) Bose system with dipole-dipole repulsion is studied at zero temperature by means of a quantum Monte Carlo method. It is shown that, in the limit of small linear density, the bosonic system of dipole moments acquires many properties of a system of noninteracting fermions. At larger linear densities, a variational Monte Carlo calculation suggests a crossover from a liquidlike to a solidlike state. The system is superfluid on the liquidlike side of the crossover and is normal deep on the solidlike side. Energy and structural functions are presented for a wide range of densities. Possible realizations of the model are 1D Bose atomic systems, with permanent dipoles or dipoles induced by static field or resonance radiation; or indirect excitons in coupled quantum wires; etc. We propose parameters of a possible experiment and discuss manifestations of the zero-temperature quantum crossover.

PACS numbers

61.20.Ja 64.30.+t 67.40.Hf 68.65.La 


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Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • A. S. Arkhipov
    • 1
  • G. E. Astrakharchik
    • 1
    • 2
  • A. V. Belikov
    • 1
  • Yu. E. Lozovik
    • 1
  1. 1.Institute of SpectroscopyRussian Academy of SciencesTroitsk, Moscow regionRussia
  2. 2.Dipartimento di FisicaUniversitá di Trento, and BEC-INFMPovoItaly

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