Fractional photon-assisted tunneling for Bose-Einstein condensates in a double well
arXiv:0905.2838 · doi:10.1103/PhysRevA.79.063620
Abstract
Half-integer photon-resonances in a periodically shaken double well are investigated on the level of the N-particle quantum dynamics. Contrary to non-linear mean-field equations, the linear N-particle Schrodinger equation does not contain any non-linearity which could be the origin of such resonances. Nevertheless, analytic calculations on the N-particle level explain why such resonances can be observed even for particle numbers as low as N = 2. These calculations also demonstrate why fractional photon resonances are not restricted to half-integer values.
7 pages, 5 figures
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Cited by in corpus (11)
- Controlling Correlated Tunneling and Superexchange Interactions with AC-Driven Optical Lattices
- Parametric Excitation and Squeezing in a Many-Body Spin System
- Ultracold fermions in a one-dimensional bipartite optical lattice: metal-insulator transitions driven by shaking
- Winding number dependence of Bose-Einstein condensates in a ring-shaped lattice
- Fractional photon-assisted tunneling in an optical superlattice: large contribution to particle transfer
- Spatial two-particle NOON-states in periodically shaken three-well potentials
- Fractional photon-assisted tunnelling of ultra-cold atoms in periodically shaken double-well lattices
- Modulation-induced long-range magnon bound states in one-dimensional optical lattices
- Effective time-reversal via periodic shaking
- Distinguishing mesoscopic quantum superpositions from statistical mixtures in periodically shaken double wells
- Degenerate approach to the mean field Bose- Hubbard Hamiltonian