115 citations · 425 across the 28 of their papers we have counts for
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math.OA2015
Covariant KSGNS construction and quantum instruments
Erkka Haapasalo, Juha-Pekka Pellonpää
We study positive kernels on , where is a set equipped with an action of a group, and taking values in the set of -sesquilinear forms on a (not necessari…
quant-ph2015★ 67 cited
Robustness of incompatibility for quantum devices
Erkka Haapasalo
A robustness measure for incompatibility of quantum devices in the lines of the robustness of entanglement is proposed. The concept of general robustness measures is first introduc…