px+ipy superfluid from s-wave interactions of fermionic cold atoms.
Two-dimensional (p(x)+ip(y)) 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 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.
Zhang
Chuanwei
C
Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA.
Tewari
Sumanta
S
Lutchyn
Roman M
RM
Das Sarma
S
S