49 citations · 58 across the 3 of their papers we have counts for
6 papers
Getting into Shape: Efficient Cooling Scheme for Fermionic Atoms in Optical Lattices
Jean-Sebastien Bernier, Corinna Kollath, Antoine Georges +4
We propose an experimental procedure to cool fermionic atoms loaded into an optical lattice. The central idea is to spatially divide the system into entropy-rich and -poor regions…
Quantum order by disorder in frustrated diamond lattice antiferromagnets
Jean-Sebastien Bernier, Michael J. Lawler, Yong Baek Kim
We present a quantum theory of frustrated diamond lattice antiferromagnets. Considering quantum fluctuations as the predominant mechanism relieving spin frustration, we find a rich…
Mott phases and superfluid-insulator transition of dipolar spin-three bosons in an optical lattice: implications for Cr atoms
Jean-Sebastien Bernier, K. Sengupta, Yong Baek Kim
We study the Mott phases and superfluid-insulator transition of spin-three bosons in an optical lattice with an anisotropic two dimensional optical trap. We chart out the phase dia…
Biaxial spin-nematic phase of two dimensional disordered rotor models and spin-one bosons in optical lattices
Jean-Sebastien Bernier, K. Sengupta, Yong Baek Kim
We show that the ground state of disordered rotor models with quadrupolar interactions can exhibit biaxial nematic ordering in the disorder-averaged sense. We present a mean-field…
U(1) spin liquids and valence bond solids in a large-N three-dimensional Heisenberg model
Jean-Sebastien Bernier, Ying-Jer Kao, Yong Baek Kim
We study possible quantum ground states of the Sp(N) generalized Heisenberg model on a cubic lattice with nearest-neighbor and next-nearest-neighbor exchange interactions. The phas…
The planar pyrochlore antiferromagnet: A large-N analysis
Jean-Sebastien Bernier, Chung-Hou Chung, Yong Baek Kim +1
We study possible quantum phases of the Heisenberg antiferromagnet on the planar pyrochlore lattice, also known as the checkerboard lattice or the square lattice with crossings. It…