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arxiv: quant-ph/9812075 · v1 · submitted 1998-12-26 · 🪐 quant-ph

Optimal purification of single qubits

classification 🪐 quant-ph
keywords optimaldecompositionpurificationsinglestatesallowscloningconstruct
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We introduce a new decomposition of the multiqubit states of the form $\rho^{\otimes N}$ and employ it to construct the optimal single qubit purification procedure. The same decomposition allows us to study optimal quantum cloning and state estimation of mixed states.

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