$p_{x}+ip_{y}$ superfluid from s-wave interactions of fermionic cold atoms

Details $p_{x}+ip_{y}$ superfluid from s-wave interactions of fermionic cold atoms $p_{x}+ip_{y}$ superfluid from s-wave interactions of fermionic cold atoms

2008-05-27

arxiv.org/abs/0805.4203v2

Phys. Rev. Lett. 101, 160401 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.101.160401

Two-dimensional ($p_{x}+ip_{y}$) superfluids/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 $p_{x}+ip_{y}$ 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.

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