Phase-Diffusion Dynamics in Weakly Coupled Bose-Einstein Condensates

Journal Article · Fri May 08 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.180403· OSTI ID:21316674

Boukobza, Erez; Vardi, Amichay ^[1]; Chuchem, Maya; Cohen, Doron ^[2]

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1. Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105 (Israel)
2. Department of Physics, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105 (Israel)

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.

• OSTI ID: 21316674
• Journal Information: Physical Review Letters, Vol. 102, Issue 18; Other Information: DOI: 10.1103/PhysRevLett.102.180403; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
DIFFUSION
HUBBARD MODEL
SEMICLASSICAL APPROXIMATION
SENSITIVITY