Decoherence of a qubit by non-Gaussian noise at an arbitrary working point
Joakim Bergli, Y. M. Galperin, B. L. Altshuler · Physical Review B · 2006
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.