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We show that universally covariant cloning is not optimal for achieving joint measurements of noncommuting observables with minimum added noise. For such a purpose a cloning transformation that is covariant with respect to a restricted transformation group is needed.

QUANTUM CLONING OPTIMAL FOR JOINT MEASUREMENTS

2001

Abstract

We show that universally covariant cloning is not optimal for achieving joint measurements of noncommuting observables with minimum added noise. For such a purpose a cloning transformation that is covariant with respect to a restricted transformation group is needed.
2001
Paolo Tombesi, Osamu Hirota
Quantum Communication, Computing, and Measurement 3
5th International Conference on Quantum Communication, Measurement, and Computing
159
9780306466090
Kluwer Academic/Plenum Publishers
NEW YORK
STATI UNITI D'AMERICA
03-08/07/2000
Capri, Italy
WOS:000174471100026
1
none
Giacomo Mauro D'Ariano;Massimiliano Federico Sacchi
273
info:eu-repo/semantics/conferenceObject
04 Contributo in convegno::04.01 Contributo in Atti di convegno
04.01 Contributo in Atti di convegno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/3953
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