Decoherence of a qubit by non-Gaussian noise at an arbitrary working point

Abstract

The decoherence of a qubit due to a classical non-Gaussian noise with correlation time longer than the decoherence time is discussed for arbitrary working points of the qubit. A method is developed that allows an exact formula for the phase memory functional in the presence of independent random telegraph noise sources to be derived.

12 pages, 7 figures

References in corpus (3)

• Low-frequency noise as a source of dephasing of a qubit
• Dephasing of solid-state qubits at optimal points
• Dynamical suppression of telegraph and 1/f noise due to quantum bistable fluctuator

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