px+ipy Superfluid from s-Wave Interactions of Fermionic Cold Atoms

Chuanwei Zhang, Sumanta Tewari, Roman M. Lutchyn, and S. Das Sarma
Phys. Rev. Lett. 101, 160401 – Published 17 October 2008

Abstract

Two-dimensional (px+ipy) superfluids or superconductors offer a playground for studying intriguing physics such as quantum teleportation, non-Abelian statistics, and topological quantum computation. Creating such a superfluid in cold fermionic atom optical traps using p-wave Feshbach resonance is turning out to be challenging. Here we propose a method to create a px+ipy superfluid directly from an s-wave interaction making use of a topological Berry phase, which can be artificially generated. We discuss ways to detect the spontaneous Hall mass current, which acts as a diagnostic for the chiral p-wave superfluid.

  • Figure
  • Received 30 May 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.160401

©2008 American Physical Society

Authors & Affiliations

Chuanwei Zhang1,2, Sumanta Tewari1,3, Roman M. Lutchyn1,4, and S. Das Sarma1

  • 1Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 2Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164, USA
  • 3Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, USA
  • 4Joint Quantum Institute, Department of Physics, University of Maryland, College Park, Maryland 20742, USA

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Issue

Vol. 101, Iss. 16 — 17 October 2008

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