Quantum Kinetic Theory of Collisionless Superfluid Internal Convection

Abstract

Superfluids can transport heat via simultaneous opposite flows of their spatially interpenetrating condensate and thermal components. While this internal convection is usually described within Landau's phenomenological two fluid hydrodynamics, we apply quantum kinetic theory to a dilute Bose gas held beween thermal reservoirs at different temperatures, and show that the phenomenon also appears in collisionless kinetic regimes, and should be directly observable in currently feasible experiments on trapped ultracold vapors.

4 pages, 1 figure

References in corpus (5)

• Probing the Superfluid to Mott Insulator Transition at the Single Atom Level
• Non-equilibrium coherence dynamics in one-dimensional Bose gases
• Oscillations and interactions of dark and dark-bright solitons in Bose-Einstein condensates
• Species-specific optical lattices
• Heat Transport in Quantum Spin Chains: Stochastic Baths vs Quantum Trajectories

Cited by in corpus (9)

• Non-equilibrium dynamics in dissipative Bose-Hubbard chains
• Classical stochastic measurement trajectories: Bosonic atomic gases in an optical cavity and quantum measurement backaction
• Low-Dimensional Stochastic Projected Gross-Pitaevskii Equation
• Reservoir interactions of a vortex in a trapped 3D Bose-Einstein condensate
• Finite temperature spin dynamics of a two-dimensional Bose-Bose atomic mixture
• Brownian motion of a matter-wave bright soliton: realizing a quantum pollen grain
• Closed system approach to open systems: Tunneling decay of interacting cold bosons in an optical lattice
• Decoherence of trapped bosons by buffer gas scattering: What length scales matter?
• Equilibrium, Relaxation and Fluctuations in homogeneous Bose-Einstein Condensates: Linearized Classical Field Analysis