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We propose a theoretical scheme for atomic cooling, i.e. the compression ofboth velocity and position distribution of particles in motion. This isachieved by collisions of the particles with a combination of a moving atomicmirror and a moving atom diode. An atom diode is a unidirectional barrier, i.e.an optical device through which an atom can pass in one direction only. We showthat the efficiency of the scheme depends on the trajectory of the diode andthe mirror. We examine both the classical and quantum mechanical descriptionsof the scheme, along with the numerical simulations to show the efficiency ineach case.

Quantum Catcher: Trapping and cooling particles using a moving atom diode and an atomic mirror