Physics – Quantum Physics
Scientific paper
2011-01-13
Phys. Rev. A 84, 010303(R) (2011)
Physics
Quantum Physics
4 pages, 1 figure
Scientific paper
10.1103/PhysRevA.84.010303
We consider the problem of quantum communication mediated by an optical refocusing system, which is schematized as a thin lens with a finite pupil. This model captures the basic features of all those situations in which a signal is either refocused by a repeater for long distance communication, or it is focused on a detector prior to the information decoding process. Introducing a general method for linear optical systems, we compute the communication capacity of the refocusing apparatus. Although the finite extension of the pupil may cause loss of information, we show that the presence of the refocusing system can substantially enhance the rate of reliable communication with respect to the free-space propagation.
Giovannetti Vittorio
Lloyd Seth
Lupo Cosmo
Mancini Stefano
Pirandola Stefano
No associations
LandOfFree
Enhanced Quantum Communication via Optical Refocusing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Enhanced Quantum Communication via Optical Refocusing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced Quantum Communication via Optical Refocusing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-78113