Dynamics of a strongly driven two-component Bose-Einstein condensate
Grant Leonard SalmondCenter for Laser Science, Department of Physics, The University of Queensland, Queensland 4072, AustraliaC. A. HolmesCenter for Mathematical Physics, Department of Mathematics, The University of Queensland, Queensland 4072, AustraliaG. J. MilburnCenter for Quantum Computer Technology, Department of Physics, The University of Queensland, Queensland 4072, Australia
2002en
ABI
Annotatsiya
We consider a two-component Bose-Einstein condensate in two spatially localized modes of a double-well potential, with periodic modulation of the tunnel coupling between the two modes. We treat the driven quantum field using a two-mode expansion and define the quantum dynamics in terms of the Floquet Operator for the time periodic Hamiltonian of the system. It has been shown that the corresponding semiclassical mean-field dynamics can exhibit regions of regular and chaotic motion. We show here that the quantum dynamics can exhibit dynamical tunneling between regions of regular motion, centered on fixed points (resonances) of the semiclassical dynamics.
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