We investigate the superfluid behavior of a Bose-Einstein condensate of $^6$Li molecules. In the experiment by Weimer et al., Phys. Rev. Lett. 114, 095301 (2015) a condensate is stirred by a weak, red-detuned laser beam along a circular path around the trap center. The rate of ...
Bose–Einstein Condensates F. Dalfovo, ... S. Stringari, in Encyclopedia of Mathematical Physics, 2006 Superfluidity and Coherence With the word superfluidity, one summarizes a complex of macroscopic phenomena occurring in quantum fluids under particular conditions: persistent currents, equilibrium state...
Superfluidity is the characteristic property of a fluid with zero viscosity which therefore flows without loss of kinetic energy. When stirred, a superfluid forms cellular vortices that continue to rotate indefinitely. Superfluidity occurs in two isotopes of helium (helium-3 and helium-4) when they...
Recently spin-orbit (SO) coupled superfluids in free space or harmonic traps have been extensively studied, motivated by the recent experimental realization of SO coupling for Bose-Einstein condensates (BEC). However, the rich physics of SO coupled BEC in optical lattices has been largely unexplore...
Superfluidity---the suppression of scattering in a quantum fluid at velocities below a critical value---is one of the most striking manifestations of the collective behaviour typical of Bose-Einstein condensates. This phenomenon, akin to superconductivity in metals, has until now only been observed...
Bose-Einstein condensatesWe study some functionals that describe the density of vortex lines in superconductors subject to an applied magnetic field, and in Bose-Einstein condensates subject to rotational forcing, in quite general domains in 3 dimensions. These functionals are derived from more basic ...
The problem whether a Bose-Einstein condensed system of Wannier excitons will exhibit superfluid properties is briefly reviewed. The long range order of such a system is shown to lead to a two-fluid model, which describes the superfluid flow of excitatio
Recently spin-orbit (SO) coupled superfluids in free space or harmonic traps have been extensively studied, motivated by the recent experimental realization of SO coupling for Bose-Einstein condensates (BEC). However, the rich physics of SO coupled BEC in optical lattices has been largely unexplore...
We study the phase coherence property of Bose[?]Einstein condensates confined in a one-dimensional optical lattice formed by a standing-wave laser field. The lattice depth is determined using a method of Kapitza-Dirac scattering between a condensate and a short pulse lattice potential. Condensates ...
B. Spin-orbit-coupled Bose-Einstein condensates . Nature 471, 83 (2011). Article CAS ADS Google Scholar Goldman, N., Juzeliūnas, G., Öhberg, P. & Spielman, I. B. Light-induced gauge fields for ultracold atoms . Rep. Progr. Phys. 77, 126401 (2014). Article CAS ADS Google ...