Witnessing nonseparability of bipartite quantum operations

Sohail; Ujjwal Sen

doi:10.1016/j.physleta.2021.127411

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arXiv · 1909.09066

Witnessing nonseparability of bipartite quantum operations

Sohail·Ujjwal Sen

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Abstract

We provide a method for witnessing nonseparability of quantum processes on shared systems, which uses the channel-state duality. The method uses a maximally entangled state as a resource. We show that using the resource provides significant advantage over the corresponding protocol for nonseparability detection without the resource.

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Sohail, Ujjwal Sen. 2019-09-19. Witnessing nonseparability of bipartite quantum operations. https://doi.org/10.1016/j.physleta.2021.127411

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