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Influence of low-frequency noise on macroscopic quantum tunneling in superconducting circuits

M. Duckheim·J. Ankerhold
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Abstract

The influence of low to moderate frequency environments on Macroscopic Quantum Tunneling (MQT) in superconducting circuits is studied within the Im-F approach to evaluate tunneling rates. Particular attention is paid to two model environments, namely, a pure sluggish bath and a sluggish bath with additional 1/f-noise. General findings are applied to Zener flip tunneling, a MQT phenomenon recently predicted and observed in a superconducting circuit implementing a quantum bit.

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M. Duckheim, J. Ankerhold. 2004-11-25. Influence of low-frequency noise on macroscopic quantum tunneling in superconducting circuits. https://doi.org/10.1103/physrevb.71.134501

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