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Quantum information

J. C. Garrison and R. Y. Chiao

in Quantum Optics

Published in print:
2008
Published Online:
September 2008
ISBN:
9780198508861
eISBN:
9780191708640
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508861.003.0021
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter addresses quantum information transmission and processing. Quantum noise is dominant in long-haul transmission lines, even for strong signals. Amplifier noise is avoided by using a ... More


Outlook

Vlatko Vedral

in Introduction to Quantum Information Science

Published in print:
2006
Published Online:
January 2010
ISBN:
9780199215706
eISBN:
9780191706783
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199215706.003.0014
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This book has discussed the foundations of quantum information science as well as the relationship between physics and information theory in general. It has considered the quantum equivalents of the ... More


Sparse Coding and Natural Statistics

Georg Northoff

in Unlocking the Brain: Volume 1: Coding

Published in print:
2013
Published Online:
April 2014
ISBN:
9780199826988
eISBN:
9780199399024
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199826988.003.0001
Subject:
Neuroscience, Behavioral Neuroscience

The brain is exposed to continuous sensory input from the environment (and the body). How does the brain encode such continuous sensory input and translate it into neural activity, e.g., ... More


Quantum communication with entanglement

Vlatko Vedral

in Introduction to Quantum Information Science

Published in print:
2006
Published Online:
January 2010
ISBN:
9780199215706
eISBN:
9780191706783
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199215706.003.0004
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter discusses some of the ways in which quantum entanglement can be used for quantum communication. Suppose Alice and Bob share an entangled state: they can use it for dense coding, in which ... More


Entanglement

Stephen Barnett

in Quantum Information

Published in print:
2009
Published Online:
November 2020
ISBN:
9780198527626
eISBN:
9780191916625
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198527626.003.0008
Subject:
Computer Science, Mathematical Theory of Computation

We have seen, in Section 2.5, how the superposition principle leads to the existence of entangled states of two or more quantum systems. Such states are characterized by the existence of ... More


Quantum Computing I

M. Suhail Zubairy

in Quantum Mechanics for Beginners: With Applications to Quantum Communication and Quantum Computing

Published in print:
2020
Published Online:
June 2020
ISBN:
9780198854227
eISBN:
9780191888649
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198854227.003.0015
Subject:
Physics, Particle Physics / Astrophysics / Cosmology, Theoretical, Computational, and Statistical Physics

A remarkable application of quantum mechanical concepts of coherent superposition and quantum entanglement is a quantum computer which can solve certain problems at speeds unbelievably faster than ... More


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