Accurate Effective Hamiltonians via Unitary Flow in Floquet space

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• Florian Mintert, Freiburg Institute for Advanced Studies
• Thursday 21 November 2013, 14:15-15:15
• TCM Seminar Room, Cavendish Laboratory.

If you have a question about this talk, please contact Gareth Conduit.

We present a systematic construction of effective Hamiltonians of periodically driven quantum systems. Because of an equivalence between the time dependence of a Hamiltonian and an interaction in its Floquet operator, flow equations, that permit us to decouple interacting quantum systems, allow us to identify time-independent Hamiltonians for driven systems. With this approach, we explain the experimentally observed deviation of expected suppression of tunneling in ultracold atoms.

This talk is part of the Theory of Condensed Matter series.

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