Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice

Details Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice

2010-07-20

arxiv.org/abs/1007.3420v2

Phys. Rev. Lett. 105, 227001 (2010)

Physics

Condensed Matter

Quantum Gases

5 pages, 3 figures. Replaced with the published version

Scientific paper

10.1103/PhysRevLett.105.227001

We show how dissipative dynamics can give rise to pairing for two-component fermions on a lattice. In particular, we construct a "parent" Liouvillian operator so that a BCS-type state of a given symmetry, e.g. a d-wave state, is reached for arbitrary initial states in the absence of conservative forces. The system-bath couplings describe single-particle, number conserving and quasi-local processes. The pairing mechanism crucially relies on Fermi statistics. We show how such Liouvillians can be realized via reservoir engineering with cold atoms representing a driven dissipative dynamics.

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