Disorder-Induced Order in Two-Component Bose-Einstein Condensates
arXiv:0707.0675 · doi:10.1103/PhysRevLett.100.030403
Abstract
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 two BECs and that the effect is robust. We demonstrate it in 1D, 2D and 3D at T=0 and present evidence that it persists at small T>0. Applications to phase control in ultracold spinor condensates are discussed.
4 pages, 3 figures
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