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Chiral Rashba spin textures in ultra-cold Fermi gases
Jay D. Sau, Rajdeep Sensarma, Stephen Powell +2
Spin-orbit coupling is an important ingredient in many recently discovered phenomena such as the spin-Hall effect and topological insulators. Of particular interest is topological…
The Prediction of a Gapless Topological "Haldane Liquid" Phase in a One-Dimensional Cold Polar Molecular Lattice
J. P. Kestner, Bin Wang, Jay D. Sau +1
We show that ultracold two-component fermionic dipolar gases in an optical lattice with strong two-body on-site loss can be used to realize a tunable effective spin-one model. Ferm…
Bogoliubov theory of interacting bosons on a lattice in a synthetic magnetic field
Stephen Powell, Ryan Barnett, Rajdeep Sensarma +1
We consider theoretically the problem of an artificial gauge potential applied to a cold atomic system of interacting neutral bosons in a tight-binding optical lattice. Using the B…
Collective modes of monolayer, bilayer, and multilayer fermionic dipolar liquid
Qiuzi Li, E. H. Hwang, S. Das Sarma
Motivated by recent experimental advances in creating polar molecular gases in the laboratory, we theoretically investigate the many body effects of two-dimensional dipolar systems…
Bose-Fermi solid and its quantum melting in an one-dimensional optical lattice
Bin Wang, Daw-Wei Wang, S. Das Sarma
We investigate the quantum phase diagram of Bose-Fermi mixtures of ultracold dipolar particles trapped in one-dimensional optical lattices in the thermodynamic limit. With the pres…
Interacting Hofstadter spectrum of atoms in an artificial gauge field
Stephen Powell, Ryan Barnett, Rajdeep Sensarma +1
Motivated by experimental advances in the synthesis of gauge potentials for ultracold atoms, we consider the superfluid phase of interacting bosons on a square lattice in the prese…