91 citations · 547 across the 40 of their papers we have counts for
4 papers · 2 filters
The canonical phase measurement is pure
Teiko Heinosaari, Juha-Pekka Pellonpää
We show that the canonical phase measurement is pure in the sense that the corresponding positive operator valued measure (POVM) is extremal in the convex set of all POVMs. This me…
Unambiguous comparison of quantum measurements
Mario Ziman, Teiko Heinosaari, Michal Sedlak
The goal of comparison is to reveal the difference of compared objects as fast and reliably as possible. In this paper we formulate and investigate the unambiguous comparison of un…
Coexistence of quantum operations
Teiko Heinosaari, Daniel Reitzner, Peter Stano +1
Quantum operations are used to describe the observed probability distributions and conditional states of the measured system. In this paper, we address the problem of their joint m…
Commutative POVMs and Fuzzy Observables
S. Twareque Ali, Claudio Carmeli, Teiko Heinosaari +1
In this paper we review some properties of fuzzy observables, mainly as realized by commutative positive operator valued measures. In this context we discuss two representation the…