Flux-pump induced degradation of $T_1$ for dissipative cat qubits
Flux-pump induced degradation of $T_1$ for dissipative cat qubits
Dissipative stabilization of cat qubits autonomously corrects for bit flip errors by ensuring that reservoir-engineered two-photon losses dominate over other mechanisms inducing phase flip errors. To describe the latter, we derive an effective master equation for an asymmetrically threaded SQUID based superconducting circuit used to stabilize a dissipative cat qubit. …