Title :
Information in quantum optical binary communications
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
fDate :
1/1/1990 12:00:00 AM
Abstract :
A quantum mechanical formalism for the calculation of the transmitted information per symbol in optical binary communications is presented. The concavity property is used to calculate the maximum entropy, from which the average entropy is subtracted to calculate the information per symbol. The proposed formalism is applied to the number of eigenstate signals in thermal noise and squeezed signals in thermal noise. The error probability for these cases is calculated. It is found that squeezing can improve the performance of optical communications
Keywords :
digital communication systems; error statistics; optical communication; quantum optics; concavity property; eigenstate signals; error probability; information per symbol; maximum entropy; optical binary communications; quantum mechanical formalism; squeezed signals; thermal noise; Adaptive optics; Error probability; Frequency; Optical beams; Optical fiber communication; Optical modulation; Optical noise; Optical receivers; Pulse modulation; Quantum mechanics;
Journal_Title :
Information Theory, IEEE Transactions on
