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arXiv · 0812.1204

Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates

Erez Boukobza·Maya Chuchem·Doron Cohen·Amichay Vardi
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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 $\pi$ relative phase is only locked in Rabi-Josephson point. Our analytic semiclassical estimates agree well with the numerical results.

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Erez Boukobza, Maya Chuchem, Doron Cohen, Amichay Vardi. 2008-12-05. Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates. https://doi.org/10.1103/physrevlett.102.180403

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