Fault-Tolerant Non-Clifford GKP Gates using Polynomial Phase Gates and On-Demand Noise Biasing
An arXiv preprint proposes a fault-tolerant scheme for non-Clifford gates on GKP-encoded qubits, combining polynomial phase gates with on-demand noise biasing. The approach targets universal fault-tolerant quantum computing by reducing the overhead of non-Clifford operations in bosonic error-corrected architectures.
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What this could mean
- 0–2 yearsPlausible
This could enable near-term demonstrations of low-overhead fault-tolerant non-Clifford gates in superconducting cavity QED systems, where GKP qubits are already being developed.
GKP states have been generated and stabilized in superconducting cavities; polynomial phase gates can be implemented with existing microwave control, and noise biasing is an engineering technique rather than new hardware.
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