Nonperturbative leakage elimination for a logical qubit encoded in a mechanical oscillator
Shasha Zheng, Qiongyi He, Mark Byrd, Lian-Ao Wu · Physical Review Research · 2020
This work presents a theoretical scheme to suppress decoherence-induced leakage errors of a single-mode harmonic oscillator used to encode a qubit in continuous-variable systems by introducing a nonperturbative leakage elimination operator.