Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules

Journal Article · Fri Oct 09 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.155302· OSTI ID:21370749

Cooper, N R ^[1]; Shlyapnikov, G V ^[2]

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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)

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}.

• OSTI ID: 21370749
• Journal Information: Physical Review Letters, Vol. 103, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.103.155302; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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