63 citations · 140 across the 16 of their papers we have counts for
4 papers · 2 filters
Quantum random access codes and incompatibility of measurements
Claudio Carmeli, Teiko Heinosaari, Alessandro Toigo
We prove that quantum random access code (QRAC) performs better than its classical counterpart only when incompatible quantum measurements are used in the decoding task. As a conse…
Witnessing incompatibility of quantum channels
Claudio Carmeli, Teiko Heinosaari, Takayuki Miyadera +1
We introduce the notion of incompatibility witness for quantum channels, defined as an affine functional that is non-negative on all pairs of compatible channels and strictly negat…
Noise-disturbance relation and the Galois connection of quantum measurements
Claudio Carmeli, Teiko Heinosaari, Takayuki Miyadera +1
The relation between noise and disturbance is investigated within the general framework of Galois connections. Within this framework, we introduce the notion of leak of information…
Constructing extremal compatible quantum observables by means of two mutually unbiased bases
Claudio Carmeli, Gianni Cassinelli, Alessandro Toigo
We describe a particular class of pairs of quantum observables which are extremal in the convex set of all pairs of compatible quantum observables. The pairs in this class are cons…