Performance advantage of protective quantum measurements

Autor: Schlosshauer, Maximilian
Rok vydání: 2024
Předmět:
Zdroj: Phys. Rev. A 110, 032215 (2024)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.110.032215
Popis: We compare the performance of protective quantum measurements to that of standard projective measurements. Performance is quantified in terms of the uncertainty in the measured expectation value. We derive an expression for the relative performance of these two types of quantum measurements and show explicitly that protective measurements can provide a significant performance advantage over standard projective measurements.
Comment: 7 pages, 5 figures, identical to published version
Databáze: arXiv