Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates

Details Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates

2008-12-05

arxiv.org/abs/0812.1204v2

Phys. Rev. Lett. 102, 180403 (2009).

Physics

Condensed Matter

Other Condensed Matter

5 pages, 4 figures

Scientific paper

We study the phase-sensitivity of collisional phase-diffusion between weakly coupled Bose-Einstein condensates, using a semiclassical picture of the two-mode Bose-Hubbard model. When weak-coupling is allowed, zero relative phase locking is attained in the Josephson-Fock transition regime, whereas a $\pi$ relative phase is only locked in Rabi-Josephson point. Our analytic semiclassical estimates agree well with the numerical results.

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