Bounding the quantum limits of precision for phase estimation with loss and thermal noise
We consider the problem of estimating an unknown but constant carrier phase modulation theta using a general, possibly entangled, n-mode optical probe through n independent and identical uses of a lossy bosonic channel with additive thermal noise. We find an upper bound to the quantum Fisher informa...
| Main Authors: | , , , |
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| Other Authors: | |
| Language: | en |
| Published: |
AMER PHYSICAL SOC
2017
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| Online Access: | http://hdl.handle.net/10150/626465 http://arizona.openrepository.com/arizona/handle/10150/626465 |