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Tricriticalities and Quantum Phases in Spin-Orbit-Coupled Spin- Bose Gases
Giovanni I. Martone, Francesco V. Pepe, Paolo Facchi +2
We study the zero-temperature phase diagram of a spin-orbit-coupled Bose-Einstein condensate of spin , with equally weighted Rashba and Dresselhaus couplings. Depending on the a…
Second Sound in Ultracold Atomic Gases
Lev P. Pitaevskii, Sandro Stringari
We provide an overview of the recent theoretical and experimental advances in the study of second sound in ultracold atomic gases. Starting from the Landau two fluid hydrodynamic e…
Quantized conductance through the quantum evaporation of bosonic atoms
D. J. Papoular, L. P. Pitaevskii, S. Stringari
We analyze theoretically the quantization of conductance occurring with cold bosonic atoms trapped in two reservoirs connected by a constriction with an attractive gate potential.…
Minimally destructive, Doppler measurement of a quantized, superfluid flow
A. Kumar, N. Anderson, W. D. Phillips +3
The Doppler effect, the shift in the frequency of sound due to motion, is present in both classical gases and quantum superfluids. Here, we perform an in-situ, minimally destructiv…
Collective oscillations of a trapped quantum gas in low dimensions
Giulia De Rosi, Sandro Stringari
We present a comprehensive study of the discretized modes of an atomic gas in different conditions of confinement. Starting from the equations of hydrodynamics we derive a closed e…
Hybridization of first and second sound in a weakly-interacting Bose gas
Lucas Verney, Lev Pitaevskii, Sandro Stringari
Using Landau's theory of two-fluid hydrodynamics we investigate the sound modes propagating in a uniform weakly-interacting superfluid Bose gas for values of temperature, up to the…