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Digital quantum information processing with continuous-variable systems

Record Type:	Electronic resources : Monograph/item
Title/Author:	Digital quantum information processing with continuous-variable systemsby Takaya Matsuura.
Author:	Matsuura, Takaya.
Published:	Singapore :Springer Nature Singapore :2023.
Description:	xv, 160 p. :ill. (some col.), digital ;24 cm.
Notes:	"Doctoral thesis accepted by The University of Tokyo, Tokyo, Japan."
Contained By:	Springer Nature eBook
Subject:	Quantum computing.
Online resource:	https://doi.org/10.1007/978-981-19-8288-0
ISBN:	9789811982880$q(electronic bk.)

Digital quantum information processing with continuous-variable systems
Matsuura, Takaya.

Digital quantum information processing with continuous-variable systems[electronic resource] /by Takaya Matsuura. - Singapore :Springer Nature Singapore :2023. - xv, 160 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5061. - Springer theses..

"Doctoral thesis accepted by The University of Tokyo, Tokyo, Japan."

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

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.

ISBN: 9789811982880$q(electronic bk.)

Standard No.: 10.1007/978-981-19-8288-0doiSubjects--Topical Terms:

725269
Quantum computing.

LC Class. No.: QA76.889 / .M38 2023

Dewey Class. No.: 006.3843

Digital quantum information processing with continuous-variable systems
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