48 citations · 157 across the 5 of their papers we have counts for
5 papers
Intrinsic unsharpness and approximate repeatability of quantum measurements
C. Carmeli, T. Heinonen, A. Toigo
The intrinsic unsharpness of a quantum observable is studied by introducing the notion of resolution width. This quantification of accuracy is shown to be closely connected with th…
Optimal measurements in quantum mechanics
T. Heinonen
Four common optimality criteria for measurements are formulated using relations in the set of observables, and their connections are clarified. As case studies, 1-0 observables, lo…
On the coexistence of position and momentum observables
C. Carmeli, T. Heinonen, A. Toigo
We investigate the problem of coexistence of position and momentum observables. We characterize those pairs of position and momentum observables which have a joint observable.
Covariant fuzzy observables and coarse-graining
T. Heinonen, P. Lahti, K. Ylinen
A fuzzy observable is regarded as a smearing of a sharp observable, and the structure of covariant fuzzy observables is studied. It is shown that the covariant coarse-grainings of…
Noise and disturbance in quantum mechanics
P. Busch, T. Heinonen, P. Lahti
The operational meaning of some measures of noise and disturbance in measurements is analyzed and their limitations are pointed out. The cases of minimal noise and least disturbanc…