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.
General
| Imprint: |
VDM Verlag Dr. Mueller E.K.
|
| Country of origin: |
Germany |
| Release date: |
November 2007 |
| First published: |
November 2007 |
| Authors: |
Kim Joris Bostroem
|
| Dimensions: |
244 x 170 x 8mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
144 |
| ISBN-13: |
978-3-8364-4694-5 |
| Categories: |
Books >
Computing & IT >
Computer software packages >
General
|
| LSN: |
3-8364-4694-4 |
| Barcode: |
9783836446945 |
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