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Non-equilibrium steady states of ideal bosonic and fermionic quantum gases
Daniel Vorberg, Waltraut Wustmann, Henning Schomerus +2
We investigate non-equilibrium steady states of driven-dissipative ideal quantum gases of both bosons and fermions. We focus on systems of sharp particle number that are driven out…
Multiphoton interband excitations of quantum gases in driven optical lattices
M. Weinberg, C. Ölschläger, C. Sträter +4
We report on the observation of multiphoton interband absorption processes for quantum gases in shaken light crystals. Periodic inertial forcing, induced by a spatial motion of the…
The role of real-space micromotion for bosonic and fermionic Floquet fractional Chern insulators
Egidijus Anisimovas, Giedrius Žlabys, Brandon M. Anderson +2
Fractional Chern insulators are the proposed phases of matter mimicking the physics of fractional quantum Hall states on a lattice without an overall magnetic field. The notion of…
High-frequency approximation for periodically driven quantum systems from a Floquet-space perspective
André Eckardt, Egidijus Anisimovas
We derive a systematic high-frequency expansion for the effective Hamiltonian and the micromotion operator of periodically driven quantum systems. Our approach is based on the bloc…