Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice
(2010)
Interference of interacting matter waves
New Journal of Physics IOP Publishing 12:6 (2010) 065029
η condensate of fermionic atom pairs via adiabatic state preparation.
Physical review letters 104:24 (2010) 240406
Abstract:
We discuss how an η condensate, corresponding to an exact excited eigenstate of the Fermi-Hubbard model, can be produced with cold atoms in an optical lattice. Using time-dependent density matrix renormalization group methods, we analyze a state preparation scheme beginning from a band insulator state in an optical superlattice. This state can act as an important test case, both for adiabatic preparation methods and the implementation of the many-body Hamiltonian, and measurements on the final state can be used to help detect associated errors.Observability of quantum criticality and a continuous supersolid in atomic gases.
Physical review letters 104:16 (2010) 165301
Abstract:
We analyze the Bose-Hubbard model with a three-body hard-core constraint by mapping the system to a theory of two coupled bosonic degrees of freedom. We find striking features that could be observable in experiments, including a quantum Ising critical point on the transition from atomic to dimer superfluidity at unit filling, and a continuous supersolid phase for strongly bound dimers.Dynamical crystal creation with polar molecules or Rydberg atoms in optical lattices
(2010)