Physics – Quantum Physics
Scientific paper
2007-01-10
Physics Letters A, Volume 372, Issue 12, 17 March 2008, Pages 1963-1967
Physics
Quantum Physics
To appear in Physics Letters A
Scientific paper
10.1016/j.physleta.2007.08.076
We consider the problem of encoding classical information into unknown qudit states belonging to any basis, of a maximal set of mutually unbiased bases, by one party and then decoding by another party who has perfect knowledge of the basis. Working with qudits of prime dimensions, we point out a no-go theorem that forbids shift operations on arbitrary unknown states. We then provide the necessary conditions for reliable encoding/decoding.
Mancini Stefano
Shaari J. S.
Wahiddin M. R. B.
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