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Digital Quantum Information Processing with Continuous-Variable Systems: Springer Theses

Autor Takaya Matsuura
en Limba Engleză Paperback – 8 feb 2024
The book provides theoretical methods of connecting discrete-variable quantum information processing to continuous-variable one. It covers the two major fields of quantum information processing, quantum communication and quantum computation, leading to achievement of a long-sought full security of continuous-variable quantum key distribution (QKD) and proposal of a resource-efficient method for optical quantum computing.
Firstly, the book provides a security of continuous-variable QKD against arbitrary attacks under a realistic condition such as finite communication rounds and the use of digitized information processing. 
The book also provides the unified view for conventionally used approximate Gottesman-Kitaev-Preskill (GKP) codes, which encodes qudits on a continuous-variable system, enabling direct comparison between researches based on different approximations.  The book finally proposes a resource-efficient method to realize the universal optical quantum computation using the GKP code via the direct preparation of the GKP magic state instead of GKP Pauli states. Feasibility of the proposed protocol is discussed based on the existing experimental proposals for the GKP state preparation.
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Specificații

ISBN-13: 9789811982903
ISBN-10: 9811982902
Pagini: 160
Ilustrații: XV, 160 p. 22 illus., 19 illus. in color.
Dimensiuni: 155 x 235 mm
Greutate: 0.26 kg
Ediția:1st ed. 2023
Editura: Springer Nature Singapore
Colecția Springer
Seria Springer Theses

Locul publicării:Singapore, Singapore

Cuprins

Introduction.- Preliminaries.- Continuous-Variable Quantum System.- Quantum Key Distribution with Continuous-Variable Systems.- Quantum computation with Continuous-Variable Systems.


Notă biografică

Takaya Matsuura received his Bachelor's degree in March 2017, Master's degree in March 2019, and Doctor's degree in March 2022 from The University of Tokyo.
His research field is quantum information science including continuous-variable quantum communication and computation. He worked with Xanadu Quantum Technologies, a start-up company of optical quantum computing in Canada, as an independent contractor and contributed to the blueprint of their hardware architecture.

Textul de pe ultima copertă

The book provides theoretical methods of connecting discrete-variable quantum information processing to continuous-variable one. It covers the two major fields of quantum information processing, quantum communication and quantum computation, leading to achievement of a long-sought full security of continuous-variable quantum key distribution (QKD) and proposal of a resource-efficient method for optical quantum computing.
Firstly, the book provides a security of continuous-variable QKD against arbitrary attacks under a realistic condition such as finite communication rounds and the use of digitized information processing. 
The book also provides the unified view for conventionally used approximate Gottesman-Kitaev-Preskill (GKP) codes, which encodes qudits on a continuous-variable system, enabling direct comparison between researches based on different approximations.  The book finally proposes a resource-efficient method to realize the universal optical quantum computation using the GKP code via the direct preparation of the GKP magic state instead of GKP Pauli states. Feasibility of the proposed protocol is discussed based on the existing experimental proposals for the GKP state preparation.

Caracteristici

Nominated as an outstanding Ph.D. thesis by The University of Tokyo Develops a security proof of a discrete-modulation continuous-variable quantum key distribution protocol Offers a comprehensive review of the security proof of qubit-based quantum key distribution