Physics – Quantum Physics
Scientific paper
2002-05-23
Phys. Rev. Lett. 90 (2003) 170404
Physics
Quantum Physics
substantial revision, 5 pages and 3 figures
Scientific paper
10.1103/PhysRevLett.90.170404
We present a general theory for adiabatic evolution of quantum states as governed by the nonlinear Schrodinger equation, and provide examples of applications with a nonlinear tunneling model for Bose-Einstein condensates. Our theory not only spells out conditions for adiabatic evolution of eigenstates, but also characterizes the motion of non-eigenstates which cannot be obtained from the former in the absence of the superposition principle. We find that in the adiabatic evolution of non-eigenstates, the Aharonov-Anandan phases play the role of classical canonical actions.
Liu Jie
Niu Qian
Wu Baofeng
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