Versatile Gaussian probes for squeezing estimation
We consider an instance of “black-box” quantum metrology in the Gaussian framework, where we aim to estimate the amount of squeezing applied on an input probe, without previous knowledge on the phase of the applied squeezing. By taking the quantum Fisher information (QFI) as the figure of merit, we...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017
|
| Online Access: | http://eprints.nottingham.ac.uk/42948/ http://eprints.nottingham.ac.uk/42948/ http://eprints.nottingham.ac.uk/42948/ http://eprints.nottingham.ac.uk/42948/1/PhysRevA.95Adesso.pdf |