423 citations · 3.1k across the 93 of their papers we have counts for
4 papers · 1 filter
Uncertainty Relations for Joint Measurements of Noncommuting Observables
Masanao Ozawa
Universally valid uncertainty relations are proven in a model independent formulation for inherent and unavoidable extra noises in arbitrary joint measurements on single systems, f…
Perfect correlations between noncommuting observables
Masanao Ozawa
The problem as to when two noncommuting observables are considered to have the same value arises commonly, but shows a nontrivial difficulty. Here, an answer is given by establishi…
Uncertainty principle for quantum instruments and computing
Masanao Ozawa
Recently, universally valid uncertainty relations have been established to set a precision limit for any instruments given a disturbance constraint in a form more general than the…
Uncertainty Relations for Noise and Disturbance in Generalized Quantum Measurements
Masanao Ozawa
Heisenberg's uncertainty relation for measurement noise and disturbance states that any position measurement with noise epsilon brings the momentum disturbance not less than hbar/2…