Autonomous quantum error correction in a four-photon Kerr parametric oscillator
نویسندگان
چکیده
Autonomous quantum error correction has gained considerable attention to avoid complicated measurements and feedback. Despite its simplicity compared with the conventional measurement-based correction, it is still a far from practical technique because of significant hardware overhead. We propose an autonomous scheme for rotational symmetric bosonic code in four-photon Kerr parametric oscillator. Our simplest possible that can surpass break-even point -- requires only single continuous microwave tone. also introduce unconditional reset one more tone addition correction. The key properties underlying this are protected quasienergy states oscillator degeneracy level structure. These eliminate need state-by-state Fock basis. schemes greatly reduce complexity thus may accelerate use computation.
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ژورنال
عنوان ژورنال: npj Quantum Information
سال: 2022
ISSN: ['2056-6387']
DOI: https://doi.org/10.1038/s41534-022-00553-z