Bosonic amplification of noise-induced suppression of phase diffusion

Details Bosonic amplification of noise-induced suppression of phase diffusion Bosonic amplification of noise-induced suppression of phase diffusion

2008-05-13

arxiv.org/abs/0805.1832v1

Phys. Rev. Lett. 100, 220403 (2008).

Physics

Condensed Matter

Other Condensed Matter

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.100.220403

We study the effect of noise-induced dephasing on collisional phase-diffusion
in the two-site Bose-Hubbard model. Dephasing of the quasi-momentum modes may
slow down phase-diffusion in the quantum Zeno limit. Remarkably, the degree of
suppression is enhanced by a bosonic factor of order $N/\log{N}$ as the
particle number $N$ increases.

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