Quantum Zeno control of coherent dissociation

Details Quantum Zeno control of coherent dissociation Quantum Zeno control of coherent dissociation

2011-10-10

arxiv.org/abs/1110.1952v1

Phys. Rev. A 84, 021606(R) (2011)

Physics

Condensed Matter

Quantum Gases

5 pages, 4 figures

Scientific paper

We study the effect of dephasing on the coherent dissociation dynamics of an atom-molecule Bose-Einstein condensate. We show that when phase-noise intensity is strong with respect to the inverse correlation time of the stimulated process, dissociation is suppressed via a Bose enhanced Quantum Zeno effect. This is complementary to the quantum zeno control of phase-diffusion in a bimodal condensate by symmetric noise (Phys. Rev. Lett. {\bf 100}, 220403 (2008)) in that the controlled process here is phase-{\it formation} and the required decoherence mechanism for its suppression is purely phase noise.

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