Articoli correlati a Lossless Quantum Data Compression and Secure Direct...

Lossless Quantum Data Compression and Secure Direct Communication: New concepts and methods for quantum information theory - Brossura

Boström, Kim Joris

 
9783639426045: Lossless Quantum Data Compression and Secure Direct Communication: New concepts and methods for quantum information theory
Brossura
ISBN 10: 3639426045 ISBN 13: 9783639426045
Casa editrice: AV Akademikerverlag, 2012

Sinossi

Revision with unchanged content. Quantum mechanics has radically changed our classical conception of information and communication. The elementary unit of information, the "bit", is replaced by the "qubit" which is a superposition of zero and one. Several qubits can be entangled among each other so that each qubit alone is neither zero nor one, nor any superposition of it. If qubits are used to encode messages then these "quantum messages" do not behave like ordinary ones. They cannot be compressed without loss of information, and the process of reading disturbs their content. Such apparent weaknesses, however, give rise to a revolutionary concept of secure communication... This book reviews the basic concepts of quantum information, develops a theoretical framework for variable-length quantum messages, derives some theorems, and introduces a novel secure communication scheme, the so-called "Ping-Pong protocol", which has attracted some interest in the scientific community and has recently been experimentally realized. The reader should be roughly familiar with probability theory, linear algebra and basic quantum mechanics.

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Informazioni sull'autore

Studied physics in Aachen, Paris, Freiburg and Potsdam, where he made his PhD in theoretical quantum mechanics. At present, Boström is engaged in the field of Neuroscience at the University of Münster.

Dalla quarta di copertina

Revision with unchanged content. Quantum mechanics has radically changed our classical conception of information and communication. The elementary unit of information, the "bit", is replaced by the "qubit" which is a superposition of zero and one. Several qubits can be entangled among each other so that each qubit alone is neither zero nor one, nor any superposition of it. If qubits are used to encode messages then these "quantum messages" do not behave like ordinary ones. They cannot be compressed without loss of information, and the process of reading disturbs their content. Such apparent weaknesses, however, give rise to a revolutionary concept of secure communication... This book reviews the basic concepts of quantum information, develops a theoretical framework for variable-length quantum messages, derives some theorems, and introduces a novel secure communication scheme, the so-called "Ping-Pong protocol", which has attracted some interest in the scientific community and has recently been experimentally realized. The reader should be roughly familiar with probability theory, linear algebra and basic quantum mechanics.

Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.

Editore
AV Akademikerverlag
Data di pubblicazione
2012
Lingua
Inglese
ISBN 10 
3639426045
ISBN 13 
9783639426045
Rilegatura
Copertina flessibile
Numero di pagine
144
Contatto del produttore
non disponibile
Persona responsabile
non disponibile