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Non-destructive Orthonormal State Discrimination

M. Gupta·A. Pathak·R. Srikanth·P. K. Panigrahi
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Abstract

We provide explicit quantum circuits for the non-destructive deterministic discrimination of Bell states in the Hilbert space $C^{d^{n}}$, where $d$ is qudit dimension. We discuss a method for generalizing this to non-destructive measurements on any set of orthogonal states distributed among $n$ parties. From the practical viewpoint, we show that such non-destructive measurements can help lower quantum communication complexity under certain conditions.

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M. Gupta, A. Pathak, R. Srikanth, P. K. Panigrahi. 2005-07-11. Non-destructive Orthonormal State Discrimination. https://arxiv.org/abs/quant-ph/0507096

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