Supersinglets

Details Supersinglets Supersinglets

2003-06-11

arxiv.org/abs/quant-ph/0306074v1

J. Mod. Opt. 50 (2003) 10049

Physics

Quantum Physics

REVTeX4, 8 pages, 1 figure

Scientific paper

10.1080/09500340308234551

Supersinglets $|{\cal S}_N^{(d)}>$ are states of total spin zero of $N$ particles of $d$ levels. Some applications of the $|{\cal S}_N^{(N)}>$ and $|{\cal S}_N^{(2)}>$ states are described. The $|{\cal S}_N^{(N)}>$ states can be used to solve three problems which have no classical solution: The "$N$ strangers," "secret sharing," and "liar detection" problems. The $|{\cal S}_N^{(2)}>$ (with $N$ even) states can be used to encode qubits in decoherence-free subspaces.

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