Speaker
Agustin di Paolo
(Google)
Description
Because of the presence of an inductive shunt, the fluxonium qubit is insensitive to the dc value of the offset-charge bias, ng. However, a sensitivity to offset-charge fluctuations develops at nonzero frequency. In this talk, we derive a convenient form of the fluxonium Hamiltonian that makes it easier to characterize the effects of a time-dependent offset-charge bias, and discuss its implications for improved qubit coherence and control.
