Coherent pumping of a Mott insulator: Fermi golden rule versus Rabi oscillations
arXiv:0812.0532 · doi:10.1103/PhysRevA.79.021607
Abstract
Cold atoms provide a unique arena to study many-body systems far from equilibrium. Furthermore, novel phases in cold atom systems are conveniently investigated by dynamical probes pushing the system out of equilibrium. Here, we discuss the pumping of doubly-occupied sites in a fermionic Mott insulator by a periodic modulation of the hopping amplitude. We show that deep in the insulating phase the many-body system can be mapped onto an effective two-level system which performs coherent Rabi oscillations due to the driving. Coupling the two-level system to the remaining degrees of freedom renders the Rabi oscillations damped. We compare this scheme to an alternative description where the particles are incoherently pumped into a broad continuum.
arXiv comment4 pages, 3 figures
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Cited by in corpus (8)
- An SU(N) Mott insulator of an atomic Fermi gas realized by large-spin Pomeranchuk cooling
- Observation of Elastic Doublon Decay in the Fermi-Hubbard Model
- Nonequilibrium dynamical mean-field calculations based on the non-crossing approximation and its generalizations
- Schrieffer-Wolff Transformation for Periodically Driven Systems: Strongly Correlated Systems with Artificial Gauge Fields
- Lifetime of double occupancies in the Fermi-Hubbard model
- Probing nearest-neighbor correlations of ultracold fermions in an optical lattice
- Dynamical Unbinding Transition in a Periodically Driven Mott Insulator
- Double-Pulse Deexcitations in a One-Dimensional Strongly Correlated System