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SUMMARY:Accurate Effective Hamiltonians via Unitary Flow in Floquet space 
 - Florian Mintert\, Freiburg Institute for Advanced Studies
DTSTART:20131121T141500Z
DTEND:20131121T151500Z
UID:TALK46647@talks.cam.ac.uk
CONTACT:Gareth Conduit
DESCRIPTION: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 op
 erator\, flow equations\, that permit us to decouple interacting quantum s
 ystems\, allow us to identify time-independent Hamiltonians for driven sys
 tems. With this approach\, we explain the experimentally observed deviatio
 n of expected suppression of tunneling in ultracold atoms.\n
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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