Enhanced parameter estimation by measurement of non-Hermitian operators
Abstract Quantum metrology aims at delivering new quantum-mechanical improvement to technologies of parameter estimations with precision bounded by the quantum Cramér-Rao bound. The currently used quantum Cramér-Rao bound was established with measurements of observables restricted to be Hermitian. T...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2023-10-01
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| Series: | AAPPS Bulletin |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s43673-023-00089-0 |