Coherent splitting of two-dimensional Bose gases in magnetic potentials
A J Barker, S Sunami, D Garrick, A Beregi, K Luksch, E Bentine, C J Foot
Abstract
Abstract Investigating out-of-equilibrium dynamics with two-dimensional (2D) systems is of widespread theoretical interest, as these systems are strongly influenced by fluctuations and there exists a superfluid phase transition at a finite temperature. In this work, we realise matter-wave interference for degenerate Bose gases, including the first demonstration of coherent splitting of 2D Bose gases using magnetic trapping potentials. We improve the fringe contrast by imaging only a thin slice of the expanded atom clouds, which will be necessary for subsequent studies on the relaxation of the gas following a quantum quench.
Topics & Concepts
PhysicsDegenerate energy levelsSuperfluidityBose gasRelaxation (psychology)TrappingCondensed matter physicsInterference (communication)QuantumQuantum mechanicsMagnetic fieldQuantum opticsBosonQuantum interferencePhase (matter)Phase transitionAtom (system on chip)Quantum dynamicsQuantum phase transitionBose–Einstein condensateAtomic physicsFermi gasDynamics (music)Quantum tunnellingAtom opticsSuperfluid helium-4Quantum phasesMagnetismCold Atom Physics and Bose-Einstein CondensatesQuantum many-body systemsStrong Light-Matter Interactions