Building a large-scale quantum computer with continuous-variable optical technologies. (5th January 2022)

• Record Type: Journal Article
• Authors: Fukui, Kosuke; Takeda, Shuntaro
• Is Part Of: Journal of physics. Volume 55:Number 1(2022)
• Publication Date: 2022-01-05
• Subjects: quantum optics -- continuous-variable quantum computation -- bosonic quantum error correction -- one-way quantum computation -- time multiplexing; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/ac489c
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: Realizing a large-scale quantum computer requires hardware platforms that can simultaneously achieve universality, scalability, and fault tolerance. As a viable pathway to meeting these requirements, quantum computation (QC) based on continuous-variable optical systems has recently gained more attention due to its unique advantages and approaches. This review introduces several topics of recent experimental and theoretical progress in the optical continuous-variable QC that we believe are promising. In particular, we focus on scaling-up technologies enabled by time multiplexing, bandwidth broadening, and integrated optics, as well as hardware-efficient and robust bosonic quantum error-correction schemes.