Realization of tunnel barriers for matter waves using spatial gaps
arXiv:1302.1811 · doi:10.1209/0295-5075/103/50006
Abstract
We experimentally demonstrate the trapping of a propagating Bose-Einstein Condensate in a Bragg cavity produced by an attractive optical lattice with a smooth envelope. As a consequence of the envelope, the band gaps become position-dependent and act as mirrors of finite and velocity-dependent reflectivity. We directly observe both the oscillations of the wave packet bouncing in the cavity provided by these spatial gaps and the tunneling out for narrow classes of velocity. Synchronization of different classes of velocity can be achieved by proper shaping of the envelope. This technique can generate single or multiple tunnel barriers for matter waves with a tunable transmission probability, equivalent to a standard barrier of submicron size.
References in corpus (12)
- Many-Body Physics with Ultracold Gases
- Direct observation of Anderson localization of matter-waves in a controlled disorder
- Dynamical control of matter-wave tunneling in periodic potentials
- Coherent quantum phase slip
- Single Particle Tunneling in Strongly Driven Double Well Potentials
- Bloch oscillations of ultracold atoms: a tool for a metrological determination of
- Two-point phase correlations of a one-dimensional bosonic Josephson junction
- Decay by tunneling of Bosonic and Fermionic Tonks-Girardeau Gases
- Realization of a distributed Bragg reflector for propagating guided matter waves
- Matter wave scattering on an amplitude-modulated optical lattice
- Guided atom laser: transverse mode quality and longitudinal momentum distribution
- Double barrier potentials for matter-wave gap solitons
Cited by in corpus (10)
- Synthetic gauge fields in synthetic dimensions
- Band and correlated insulators of cold fermions in a mesoscopic lattice
- Quantum tunneling dynamics of an interacting Bose-Einstein condensate through a Gaussian barrier
- Birth of a quasi-stationary black hole in an outcoupled Bose-Einstein condensate
- Routes towards the experimental observation of the large fluctuations due to chaos assisted tunneling effects with cold atoms
- Splitting of two-component solitary waves from collisions with narrow potential barriers
- Direct cooling in an optical lattice by amplitude modulation
- Band gap structures for matter waves
- Probing surface states with many-body wave packet scattering
- Quantum transport in the black-hole configuration of an atom condensate outcoupled through an optical lattice