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- W4310558977 abstract "Bosonic fault tolerant quantum computing requires preparations of Bosonic code states like cat states and GKP states with high fidelity and reliable quantum certification of these states. Although many proposals on preparing these states have been developed, few investigation has been done on how to reliably certify these experimental states. In this paper, we develop approaches to certify whether a continuous-variable state falls inside a certain Bosonic qubit code space by detecting a witness using Gaussian measurements. Our results can be applied to certification of various cat codes including two-component cat states, four-component cat states, and squeezed two-component cat states as well as Gottesman-Kitaev-Preskill codes. Then we further apply our approach to certify resource states in continuous-variable universal fault tolerant measurement-based quantum computing and quantum outputs of instantaneous quantum polynomial circuits, which can be used to show quantum supremacy. The sample complexity of our approach is efficient in terms of number of modes, so significantly reducing overhead compared to quantum state tomography in certification of many-mode quantum states." @default.
- W4310558977 created "2022-12-12" @default.
- W4310558977 creator A5033925343 @default.
- W4310558977 date "2022-11-30" @default.
- W4310558977 modified "2023-09-26" @default.
- W4310558977 title "Reliable Quantum Certification of Bosonic Code Preparations" @default.
- W4310558977 doi "https://doi.org/10.48550/arxiv.2211.16777" @default.
- W4310558977 hasPublicationYear "2022" @default.
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