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The Elusive Source of Quantum Speedup

Abstract:

We discuss two qualities of quantum systems: various correlations existing between their subsystems and the distinguishability of different quantum states. This is then applied to analysing quantum information processing. While quantum correlations, or entanglement, are clearly of paramount importance for efficient pure state manipulations, mixed states present a much richer arena and reveal a more subtle interplay between correlations and distinguishability. The current work explores a numbe...

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Publication status:
Published

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Publisher copy:
10.1007/s10701-010-9452-0

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Role:
Author
Journal:
FOUNDATIONS OF PHYSICS
Volume:
40
Issue:
8
Pages:
1141-1154
Publication date:
2010-08-05
DOI:
EISSN:
1572-9516
ISSN:
0015-9018
URN:
uuid:519aba3d-4f1e-44f2-9886-634671137a62
Source identifiers:
159000
Local pid:
pubs:159000

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