Quantum coherence from commensurate driving with laser pulses and decay

  title={Quantum coherence from commensurate driving with laser pulses and decay},
  author={G. S. Uhrig},
  journal={SciPost Physics},
  • G. Uhrig
  • Published 6 June 2019
  • Physics
  • SciPost Physics
Non-equilibrium physics is a particularly fascinating field of current research. Generically, driven systems are gradually heated up so that quantum effects die out. In contrast, we show that a driven central spin model including controlled dissipation in a highly excited state allows us to distill quantum coherent states, indicated by a substantial reduction of entropy; the key resource is the commensurability between the periodicity of the pump pulses and the internal processes. The model is… 

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