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Title: Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules

Abstract

We show that single-component fermionic polar molecules confined to a 2D geometry and dressed by a microwave field may acquire an attractive 1/r{sup 3} dipole-dipole interaction leading to superfluid p-wave pairing at sufficiently low temperatures even in the BCS regime. The emerging state is the topological p{sub x}+ip{sub y} phase promising for topologically protected quantum information processing. The main decay channel is via collisional transitions to dressed states with lower energies and is rather slow, setting a lifetime of the order of seconds at 2D densities approx10{sup 8} cm{sup -2}.

Authors:
 [1];  [2]
  1. TCM Group, University of Cambridge, Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
  2. Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris Sud, CNRS, 91405 Orsay (France)
Publication Date:
OSTI Identifier:
21370749
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 103; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.103.155302; (c) 2009 The American Physical Society; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DATA PROCESSING; DIPOLES; FERMIONS; MICROWAVE RADIATION; MOLECULES; P WAVES; QUANTUM INFORMATION; QUANTUM MECHANICS; SUPERFLUIDITY; TOPOLOGY; ELECTROMAGNETIC RADIATION; INFORMATION; MATHEMATICS; MECHANICS; MULTIPOLES; PARTIAL WAVES; PROCESSING; RADIATIONS

Citation Formats

Cooper, N R, Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris Sud, CNRS, 91405 Orsay, Shlyapnikov, G V, and van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules. United States: N. p., 2009. Web. doi:10.1103/PHYSREVLETT.103.155302.
Cooper, N R, Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris Sud, CNRS, 91405 Orsay, Shlyapnikov, G V, & van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules. United States. https://doi.org/10.1103/PHYSREVLETT.103.155302
Cooper, N R, Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris Sud, CNRS, 91405 Orsay, Shlyapnikov, G V, and van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. 2009. "Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules". United States. https://doi.org/10.1103/PHYSREVLETT.103.155302.
@article{osti_21370749,
title = {Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules},
author = {Cooper, N R and Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris Sud, CNRS, 91405 Orsay and Shlyapnikov, G V and van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam},
abstractNote = {We show that single-component fermionic polar molecules confined to a 2D geometry and dressed by a microwave field may acquire an attractive 1/r{sup 3} dipole-dipole interaction leading to superfluid p-wave pairing at sufficiently low temperatures even in the BCS regime. The emerging state is the topological p{sub x}+ip{sub y} phase promising for topologically protected quantum information processing. The main decay channel is via collisional transitions to dressed states with lower energies and is rather slow, setting a lifetime of the order of seconds at 2D densities approx10{sup 8} cm{sup -2}.},
doi = {10.1103/PHYSREVLETT.103.155302},
url = {https://www.osti.gov/biblio/21370749}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 15,
volume = 103,
place = {United States},
year = {Fri Oct 09 00:00:00 EDT 2009},
month = {Fri Oct 09 00:00:00 EDT 2009}
}