Jedrkiewicz, Ottavia and Loudon, Rodney and Jeffers, John (2004) Retrodiction for optical attenuators, amplifiers, and detectors. Physical Review A, 70 (3). 033805-1. ISSN 1050-2947
Full text not available in this repository. (Request a copy from the Strathclyde author)Official URL: http://dx.doi.org/10.1103/PhysRevA.70.033805
Abstract
The transformation that an attenuator makes on the state of an optical field is the time reverse of that of an amplifier. Thus predicting the output state for an amplifier is equivalent to retrodicting the input state of an attenuator. We explore the consequences of this equivalence for simple optical quantum communication channels. One counterintuitive consequence is that the mean number of photons sent into an amplifier as retrodicted from a measurement of the number of output photons does not include the contribution of the amplifier noise.
| Item type: | Article |
|---|---|
| ID code: | 2902 |
| Keywords: | optics, attenuator, amplifier, detector, quantum physics, photonics, Optics. Light |
| Subjects: | Science > Physics > Optics. Light |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Mr Derek Boyle |
| Date Deposited: | 09 Feb 2007 |
| Last modified: | 04 Oct 2012 11:52 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/2902 |
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