24 citations · 56 across the 12 of their papers we have counts for
Showing 2020 · quant-phShow all
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quant-ph2020
Nullspaces of Entanglement Breaking Channels and Applications
D. W. Kribs, J. Levick, K. Olfert +2
We investigate the nullspace structures of entanglement breaking channels, and related applications. We show that every operator space of trace zero matrices is the nullspace of an…
quant-ph2020★ 3 cited
Twirling channels have minimal mixed-unitary rank
Mark Girard, Jeremy Levick
For a positive integer and a unitary representation of a compact group , the twirling channel for this representation is the linear mapping $Φ:…
quant-ph2020★ 24 cited
On the mixed-unitary rank of quantum channels
Mark Girard, Debbie Leung, Jeremy Levick +4
In the theory of quantum information, the mixed-unitary quantum channels, for any positive integer dimension , are those linear maps that can be expressed as a convex combinatio…