Improvement by laser quenching of an "atom diode": a one-way barrier for ultra-cold atoms

Abstract

Different laser devices working as ``atom diodes'' or ``one-way barriers'' for ultra-cold atoms have been proposed recently. They transmit ground state level atoms coming from one side, say from the left, but reflect them when they come from the other side. We combine a previous model, consisting of the stimulated Raman adiabatic passage (STIRAP) from the ground to an excited state and a state-selective mirror potential, with a localized quenching laser which produces spontaneous decay back to the ground state. This avoids backwards motion, provides more control of the decay process and therefore a more compact and useful device.

6 pages

References in corpus (1)

• Compression of Atomic Phase Space Using an Asymmetric One-Way Barrier

Cited by in corpus (7)

• Experimental Realization of an Optical One-Way Barrier for Neutral Atoms
• Spin Field Effect Transistors with Ultracold Atoms
• Three-dimensional effects in "atom diodes": atom-optical devices for one-way motion
• Dressed-particle approach in the nonrelativistic classical limit
• Dynamics of Cold Atoms Crossing a One-Way Barrier
• Atom cooling with an atom-optical diode on a ring
• Transversal laser excitation of atoms in a waveguide