Engineering the speedup of quantum tunneling in Josephson systems via dissipation

  title={Engineering the speedup of quantum tunneling in Josephson systems via dissipation},
  author={Dominik Maile and Joachim Ankerhold and Sabine Andergassen and Wolfgang Belzig and Gianluca Rastelli},
  journal={Physical Review B},
We theoretically investigate the escape rate occurring via quantum tunneling in a system affected by tailored dissipation. Specifically, we study the environmental assisted quantum tunneling of the superconducting phase in a current-biased Josephson junction. We consider Ohmic resistors inducing dissipation both in the phase and in the charge of the quantum circuit. We find that the charge dissipation leads to an enhancement of the quantum escape rate. This effect appears already in the low Ohmic… 


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