Fractional photon-assisted tunneling for Bose-Einstein condensates in a double well

Details Fractional photon-assisted tunneling for Bose-Einstein condensates in a double well Fractional photon-assisted tunneling for Bose-Einstein condensates in a double well

2009-05-18

arxiv.org/abs/0905.2838v1

Phys. Rev. A 79, 063620 (2009)

Physics

Condensed Matter

Quantum Gases

7 pages, 5 figures

Scientific paper

10.1103/PhysRevA.79.063620

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.

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