Demonstration of Protection of a Superconducting Qubit from Energy Decay
Demonstration of Protection of a Superconducting Qubit from Energy Decay
Long-lived transitions occur naturally in atomic systems due to the abundance of selection rules inhibiting spontaneous emission. By contrast, transitions of superconducting artificial atoms typically have large dipoles, and hence their lifetimes are determined by the dissipative environment of a macroscopic electrical circuit. We designed a multilevel fluxonium artificial atom …