Abstract
It is hard to stabilize the -wave superfluid state of cold atomic gas in free space due to inelastic collisional losses. We consider the -wave Feshbach resonance in an optical lattice, and show that it is possible to have a stable -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 -wave superfluid state and different types of insulator states induced either by interaction or by dissipation.
- Received 20 May 2009
DOI:https://doi.org/10.1103/PhysRevLett.103.070404
©2009 American Physical Society