188 citations · 1.3k across the 84 of their papers we have counts for
Showing 2014 · quant-phShow all
2 papers · 2 filters
quant-ph2014★ 10 cited
Quantum channels with polytopic images and image additivity
Motohisa Fukuda, Ion Nechita, Michael M. Wolf
We study quantum channels with respect to their image, i.e., the image of the set of density operators under the action of the channel. We first characterize the set of quantum cha…
quant-ph2014★ 15 cited
Positive reduction from spectra
Maria Anastasia Jivulescu, Nicolae Lupa, Ion Nechita +1
We study the problem of whether all bipartite quantum states having a prescribed spectrum remain positive under the reduction map applied to one subsystem. We provide necessary and…