Feshbach resonance in optical lattices and the quantum Ising model.

  title={Feshbach resonance in optical lattices and the quantum Ising model.},
  author={M. J. Bhaseen and A. O. Silver and Martin Hohenadler and Benjamin D. Simons},
  journal={Physical review letters},
  volume={103 26},
Motivated by experiments on heteronuclear Feshbach resonances in Bose mixtures, we investigate s-wave pairing of two species of bosons in an optical lattice. The zero temperature phase diagram supports a rich array of superfluid and Mott phases and a network of quantum critical points. This topology reveals an underlying structure that is succinctly captured by a two-component Landau theory. Within the second Mott lobe we establish a quantum phase transition described by the paradigmatic… 

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Principles of condensed matter physics

Preface 1. Overview 2. Structure and scattering 3. Thermodynamics and statistical mechanics 4. Mean-field theory 5. Field theories, critical phenomena, and the renormalization group 6. Generalized


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