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10 papers · 2 filters
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…
Realistic Time-Reversal Invariant Topological Insulators With Neutral Atoms
N. Goldman, I. Satija, P. Nikolic +4
We lay out an experiment to realize time-reversal invariant topological insulators in alkali atomic gases. We introduce an original method to synthesize a gauge field in the near-f…
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…
Momentum-space engineering of gaseous Bose-Einstein condensates
Mark Edwards, Brandon Benton, Jeffrey Heward +1
We show how the momentum distribution of gaseous Bose--Einstein condensates can be shaped by applying a sequence of standing-wave laser pulses. We present a theory, whose validity…
Creation and manipulation of Feshbach resonances with radio-frequency radiation
Thomas M. Hanna, Eite Tiesinga, Paul S. Julienne
We present a simple technique for studying collisions of ultracold atoms in the presence of a magnetic field and radio-frequency radiation (rf). Resonant control of scattering prop…
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…