Continuous-variable quantum computation with optical quantum entanglement and quantum teleportation in time domain

Warit Asavanant; Akito Kawasaki; Ryuhoh Ide; Takumi Suzuki; Hector Brunel; Baramee Charoensombutamon; Atsushi Sakaguchi; Kosuke Fukui; Takahiro Kashiwazaki; Asuka Inoue; Takeshi Umeki; Kan Takase; Jun-ichi Yoshikawa; Mamoru Endo; Akira Furusawa

doi:10.1117/12.2675704

3 October 2023 Continuous-variable quantum computation with optical quantum entanglement and quantum teleportation in time domain

Warit Asavanant, Akito Kawasaki, Ryuhoh Ide, Takumi Suzuki, Hector Brunel, Baramee Charoensombutamon, Atsushi Sakaguchi, Kosuke Fukui, Takahiro Kashiwazaki, Asuka Inoue, Takeshi Umeki, Kan Takase, Jun-ichi Yoshikawa, Mamoru Endo, Akira Furusawa

Author Affiliations +

Proceedings Volume 12692, Quantum Communications and Quantum Imaging XXI; 1269202 (2023) https://doi.org/10.1117/12.2675704
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

Enabling large-scale and high-speed quantum computation is a key to practical quantum computation. Continuous-variable approach in optical systems offer advantages in scalability and speed by leveraging their temporal degree of freedom and inherent large carrier frequency. In this paper, we investigate the generation and manipulation of quantum entanglement through a time-domain multiplexing approach. By employing time-domain multiplexing, we generate a two-dimensional cluster state—a universal resource for large-scale quantum computation—and perform quantum operations in the time domain with cluster state. Additionally, our ongoing research focuses on the generation and measurement of broadband optical quantum entanglement through an optical parametric oscillator, which holds potential as a foundation for high-speed quantum computing surpassing limitations of existing systems. By further engineering the quantum entanglement, we have also theoretically formulated a practical teleportation-based architectures for quantum computation in time domain. These advancements form the groundwork for the development of practical optical quantum computation.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Warit Asavanant, Akito Kawasaki, Ryuhoh Ide, Takumi Suzuki, Hector Brunel, Baramee Charoensombutamon, Atsushi Sakaguchi, Kosuke Fukui, Takahiro Kashiwazaki, Asuka Inoue, Takeshi Umeki, Kan Takase, Jun-ichi Yoshikawa, Mamoru Endo, and Akira Furusawa "Continuous-variable quantum computation with optical quantum entanglement and quantum teleportation in time domain", Proc. SPIE 12692, Quantum Communications and Quantum Imaging XXI, 1269202 (3 October 2023); https://doi.org/10.1117/12.2675704

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