Disorder-Induced Order in Two-Component Bose-Einstein Condensates

Journal Article · Fri Jan 25 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.030403· OSTI ID:21020956

Niederberger, A ^[1]; Schulte, T ^[1]; Wehr, J ^[1]; Lewenstein, M ^[1]; Sanchez-Palencia, L ^[2]; Sacha, K ^[1]

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1. ICFO-Institut de Ciencies Fotoniques, Parc Mediterrani de la Tecnologia, E-08860 Castelldefels (Barcelona) (Spain)
2. Laboratoire Charles Fabry de l'Institut d'Optique, CNRS and Univ. Paris-Sud, Campus Polytechnique, RD 128, F-91127 Palaiseau cedex (France)

We propose and analyze a general mechanism of disorder-induced order in two-component Bose-Einstein condensates, analogous to corresponding effects established for XY spin models. We show that a random Raman coupling induces a relative phase of {pi}/2 between the two BECs and that the effect is robust. We demonstrate it in one, two, and three dimensions at T=0 and present evidence that it persists at small T>0. Applications to phase control in ultracold spinor condensates are discussed.

• OSTI ID: 21020956
• Journal Information: Physical Review Letters, Vol. 100, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.100.030403; (c) 2008 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
CONTROL THEORY
MATHEMATICAL MODELS
RANDOMNESS
SPIN