Cavity-induced switching between localized and extended states in a non-interacting Bose-Einstein condensate
arXiv:1108.4786 · doi:10.1103/PhysRevA.84.043606
Abstract
We study an ultracold atom-cavity coupling system, which had been implemented in experiment to display weak light nonlinearity [S. Gupta \textit{et al}., Phys. Rev. Lett. \textbf{99}, 213601 (2007)]. The model is described by a non-interacting Bose-Einstein condensate contained in a Fabry-Pérot optical resonator, in which two incommensurate standing-wave modes are excited and thus form a quasiperiodic optical lattice potential for the atoms. Special emphasis are paid to the variation of atomic wavefunction induced by the cavity light field. We show that bistability between the atomic localized and extended states can be generated under appropriate conditions.
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- Localization driven superradiant instability
- Anomalous Diffusion in a Dynamical Optical Lattice
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- Spinful Aubry-Andre model in a magnetic field: Delocalization facilitated by a weak spin-orbit coupling
- Collision of two self-trapped atomic matter wave packets in an optical ring cavity
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