Bosonic amplification of noise-induced suppression of phase diffusion

Bosonic amplification of noise-induced suppression of phase diffusion

We study the effect of noise-induced dephasing on collisional phase diffusion in the two-site Bose-Hubbard model. Dephasing of the quasimomentum modes may slow down phase diffusion in the quantum Zeno limit. Remarkably, the degree of suppression is enhanced by a bosonic factor of order N/logN as the...

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Bibliographic Details
Published in:Physical review letters Vol. 100; no. 22; p. 220403
Main Authors: Khodorkovsky, Y, Kurizki, G, Vardi, A
Format: Journal Article
Language:English
Published: United States 06-06-2008
Subjects:
AMPLIFICATION
BOSONS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIFFUSION
HUBBARD MODEL
NOISE
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Summary:We study the effect of noise-induced dephasing on collisional phase diffusion in the two-site Bose-Hubbard model. Dephasing of the quasimomentum modes may slow down phase diffusion in the quantum Zeno limit. Remarkably, the degree of suppression is enhanced by a bosonic factor of order N/logN as the particle number N increases.
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content type line 23
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.220403