Interlayer Superfluidity in Bilayer Systems of Fermionic Polar Molecules

A. Pikovski, M. Klawunn, G. V. Shlyapnikov, and L. Santos
Phys. Rev. Lett. 105, 215302 – Published 17 November 2010

Abstract

We consider fermionic polar molecules in a bilayer geometry where they are oriented perpendicularly to the layers, which permits both low inelastic losses and superfluid pairing. The dipole-dipole interaction between molecules of different layers leads to the emergence of interlayer superfluids. The superfluid regimes range from BCS-like fermionic superfluidity with a high Tc to Bose-Einstein (quasi-)condensation of interlayer dimers, thus exhibiting a peculiar BCS–Bose-Einstein condensation crossover. We show that one can cover the entire crossover regime under current experimental conditions.

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  • Received 24 August 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.215302

© 2010 The American Physical Society

Authors & Affiliations

A. Pikovski1, M. Klawunn1,2, G. V. Shlyapnikov3,4, and L. Santos1

  • 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstrasse 2, 30169, Hannover, Germany
  • 2INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123 Povo, Italy
  • 3Laboratoire de Physique Théorique et Modèles Statistique, Université Paris Sud, CNRS, 91405 Orsay, France
  • 4Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam, The Netherlands

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Vol. 105, Iss. 21 — 19 November 2010

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