Phys. Rev. Lett. 86, 4733–4736 (2001)Uniting Bose-Einstein Condensates in Optical ResonatorsReceived 4 January 2001; published in the issue dated 21 May 2001 The relative phase of two initially independent Bose-Einstein condensates can be laser cooled to unite the two condensates by putting them into a ring cavity and coupling them with an internal Josephson junction. First, we show that this phase cooling process already appears within a semiclassical model. We calculate the stationary states, find regions of bistable behavior, and suggest a Ramsey-type experiment to measure the buildup of phase coherence between the condensates. We also study quantum effects and imperfections of the system. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.4733
DOI:
10.1103/PhysRevLett.86.4733
PACS:
03.75.Fi, 42.50.-p, 74.50.+r
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