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arXiv · 0805.4203

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

Chuanwei Zhang·Sumanta Tewari·Roman Lutchyn·S. Das Sarma
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Abstract

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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Chuanwei Zhang, Sumanta Tewari, Roman Lutchyn, S. Das Sarma. 2008-10-21. $p_{x}+ip_{y}$ superfluid from s-wave interactions of fermionic cold atoms. https://doi.org/10.1103/physrevlett.101.160401

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