N-particle N-level singlet States: some properties and applications.

Phys Rev Lett

Departamento de Física Aplicada II, Universidad de Sevilla, Spain.

Published: September 2002

Three apparently unrelated problems which have no solution using classical tools are described: the "N-strangers," "secret sharing," and "liar detection" problems. A solution for each of them is proposed. Common to all three solutions is the use of quantum states of total spin zero of N spin-(N-1)/2 particles.

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http://dx.doi.org/10.1103/PhysRevLett.89.100402DOI Listing

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