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arXiv · 2301.03188

Linear Optical Quantum Computation with Frequency-Comb Qubits and Passive Devices

Tomohiro Yamazaki·Tomoaki Arizono·Toshiki Kobayashi·Rikizo Ikuta·Takashi Yamamoto
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Abstract

We propose a linear optical quantum computation scheme using time-frequency degree of freedom. In this scheme, a qubit is encoded in single-photon frequency combs, and manipulation of the qubits is performed using time-resolving detectors, beam splitters, and optical interleavers. This scheme does not require active devices such as high-speed switches and electro-optic modulators and is robust against temporal and spectral errors, which are mainly caused by the detectors' finite resolution. We show that current technologies almost meet the requirements for fault-tolerant quantum computation.

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Tomohiro Yamazaki, Tomoaki Arizono, Toshiki Kobayashi, Rikizo Ikuta, Takashi Yamamoto. 2023-01-09. Linear Optical Quantum Computation with Frequency-Comb Qubits and Passive Devices. https://doi.org/10.1103/physrevlett.130.200602

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