An atomic colour superfluid via three-body loss

Understand

Large three-body losses in a three-component Fermi gas confined in an optical lattice can prevent the occupation of a lattice site by three atoms.

• This effective constraint not only gives rise to a suppression of actual three-body loss, but stabilises BCS pairing phases by suppressing the formation of trions.
• We study the effects of the constraint using bosonisation and density matrix renormalisation group techniques (DMRG).
• We discuss the case of lithium experiments, and study the dissipative dynamics including loss using time-dependent DMRG with quantum trajectories methods.