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cond-mat.quant-gas2013★ 34 cited
Discontinuities in the First and Second Sound Velocities at the Berezinskii-Kosterlitz-Thouless Transition
Tomoki Ozawa, Sandro Stringari
We calculate the temperature dependence of the first and second sound velocities in the superfluid phase of a 2D dilute Bose gas by solving Landau's two fluid hydrodynamic equation…
cond-mat.quant-gas2013★ 116 cited
Anomalous and Quantum Hall Effects in Lossy Photonic Lattices
Tomoki Ozawa, Iacopo Carusotto
We theoretically discuss analogues of the anomalous and the integer quantum Hall effect in driven-dissipative two-dimensional photonic lattices in the presence of a synthetic gauge…
cond-mat.quant-gas2013★ 69 cited
Supercurrent and dynamical instability of spin-orbit-coupled ultracold Bose gases
Tomoki Ozawa, Lev P. Pitaevskii, Sandro Stringari
We investigate the stability of supercurrents in a Bose-Einstein condensate with one-dimensional spin-orbit and Raman couplings. The consequence of the lack of Galilean invariance…