Suppression of decoherence effects in the quantum kicked rotor

Details Suppression of decoherence effects in the quantum kicked rotor Suppression of decoherence effects in the quantum kicked rotor

2010-04-15

arxiv.org/abs/1004.2562v1

Physical Review A: Atomic, Molecular and Optical Physics 81, 6 (2010) 062132

Physics

Quantum Physics

5 pages, 4 figures, revtex 4, submitted to PRL

Scientific paper

10.1103/PhysRevA.81.062132

We describe a method allowing transient suppression of decoherence effects on the atom-optics realization of the kicked rotor. The system is prepared in an initial state with a momentum distribution concentrated in an interval much sharper than the Brillouin zone; the measure of the momentum distribution is restricted to this interval of quasimomenta: As most of the atoms undergoing decoherence processes fall outside this detection range and thus are not detected, the measured signal is effectively decoherence-free.

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