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

S. Diehl; W. Yi; A. J. Daley; P. Zoller

doi:10.1103/physrevlett.105.227001

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arXiv · 1007.3420

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

S. Diehl·W. Yi·A. J. Daley·P. Zoller

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Abstract

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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S. Diehl, W. Yi, A. J. Daley, P. Zoller. 2010-12-01. Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice. https://doi.org/10.1103/physrevlett.105.227001

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