Controllable Asymmetric Matter-wave Beam Splitter and Ring Potential on an Atom Chip
arXiv:1506.01013 · doi:10.1103/PhysRevA.93.033612
Abstract
We have constructed an asymmetric matter-wave beam splitter and a ring potential on an atom chip with Bose-Einstein condensates using radio-frequency dressing. By applying rf-field parallel to the quantization axis in the vicinity of the static trap minima added to perpendicular rf-fields, versatile controllability on the potentials is realized. Asymmetry of the rf-induced double well is manipulated without discernible displacement of the each well along horizontal and vertical direction. Formation of an isotropic ring potential on an atom chip is achieved by compensating the gradient due to gravity and inhomogeneous coupling strength. In addition, position and rotation velocity of a BEC along the ring geometry are controlled by the relative phase and the frequency difference between the rf-fields, respectively.
6 pages, 4 figures
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- Quantum Simulations with Bilayer 2D Bose Gases in Multiple-RF-dressed Potentials
- Parametric oscillations in a dissipative bosonic Josephson junction
- Semiclassics in a system without classical limit: The few-body spectrum of two interacting bosons in one dimension
- Number-phase uncertainty and quantum dynamics of bosons and fermions interacting with a finite range and large scattering length in a double-well potential
- Stability analysis of a magnetic waveguide with self-generated offset field
- Dynamical control of particle jets from a driven condensate in a one-dimensional lattice with double-well potential