- Abstract:
-
We give a detailed discussion of optimal quantum states for optical two-mode interferometry in the presence of photon losses. We derive analytical formulae for the precision of phase estimation obtainable using quantum states of light with a definite photon number and prove that maximization of the precision is a convex optimization problem. The corresponding optimal precision, i.e., the lowest possible uncertainty, is shown to beat the standard quantum limit thus outperforming classical inte...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1103/PhysRevA.80.013825
-
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- Journal:
- PHYSICAL REVIEW A
- Volume:
- 80
- Issue:
- 1
- Publication date:
- 2009-07-05
- DOI:
- EISSN:
-
1094-1622
- ISSN:
-
1050-2947
- URN:
-
uuid:f3c1ed5f-9f6c-4d85-9e44-e951e660f4c7
- Source identifiers:
-
4131
- Local pid:
- pubs:4131
- Language:
- English
- Copyright date:
- 2009
Journal article
Quantum phase estimation with lossy interferometers
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