Semi-device-independent self-testing of unsharp measurements
Nikolai Miklin, Jakub J. Borkała, Marcin Pawłowski · Physical Review Research · 2020
This work studies unsharp quantum measurements as a resource in scenarios where one faces the trade-off between information gain and disturbance. The authors introduce a prepare-transform-measure scenario in which unsharp measurements outperform their sharp counterparts, as well as any stochastic strategy involving dichotomic projective measurements.