Breaking the weak Heisenberg limit
arXiv:1607.07668 · doi:10.1103/PhysRevA.95.032113
Abstract
We provide a very simple case showing that the weak form of the Heisenberg limit can be beaten while the prior information is improved without bias.
6 pages, 2 figures
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- Using states with a large photon number variance to increase quantum Fisher information in single-mode phase estimation
- Non-Markovian effect on quantum optical metrology under dissipative environment
- Extreme expected values and their applications in quantum information processing
- Average number is an insufficient metric for interferometry
- Non-asymptotic quantum metrology