Extendibility of quantum states

Abstract

Unlike classical states, quantum states cannot necessarily be extended in such a way that the two-particle reduced states are all identical. More precisely, only the separable states are those that can be extended in such a way. The so-called shareability or extendibility number describes how many parties a given state can be extended to. This is a good entanglement measure (i.e., a LOCC-monotone function), however, it has been calculated only for a few types of states. The talk presents the (k,l)-shareable states for a set Werner-like states, and the set of (1,2)-shareable OO-states.

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Zoom meeting details

Topic: Quantum Information and Quantum Computing Working Group
Time: Wednesday, October 20, 2021, 15:15 Warsaw (CET)

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Meeting ID: 96294497969
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