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Phys Rev Lett. 2009 Aug 14;103(7):070404. Epub 2009 Aug 14.

Stabilization of the p-wave superfluid state in an optical lattice.

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Department of Physics and MCTP, University of Michigan, Ann Arbor, Michigan 48109, USA.


It is hard to stabilize the p-wave superfluid state of cold atomic gas in free space due to inelastic collisional losses. We consider the p-wave Feshbach resonance in an optical lattice, and show that it is possible to have a stable p-wave superfluid state where the multiatom collisional loss is suppressed through the quantum Zeno effect. We derive the effective Hamiltonian for this system, and calculate its phase diagram in a one-dimensional optical lattice. The results show rich phase transitions between the p-wave superfluid state and different types of insulator states induced either by interaction or by dissipation.

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