Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates
arXiv:0812.1204 · doi:10.1103/PhysRevLett.102.180403
Abstract
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 relative phase is only locked in Rabi-Josephson point. Our analytic semiclassical estimates agree well with the numerical results.
5 pages, 4 figures
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