QUANTUM CORRELATIONS IN NONLINEAR OPTICAL SIGNALS

R. Tanaś

Margarita A. Man’ko, Olga V. Man’ko, Vladimir I. Man’ko

Probability distributions (tomograms) associated to classical and quantum optical signals are introduced. Nonlinear evolution equations are discussed in the probability representation. For spin states, entropy and information corresponding to spin tomograms are studied.

G. N. Tolstikhin, A. V. Popova

Special features of construction of fiber-optical transmission systems with amplitude and phase manipulation of optical signals are considered. Methods for a comparative assessment of the information protection are presented. The obtained results are analyzed. The need and the expediency of implementation of signal phase manipulation on fiber-optical transmission systems at the contemporary stage are estimated. Conclusions are formulated.

Rupamanjari Ghosh

Daniel F. Walls

G. Huber, Ernst Wilhelm Otten

The influence of multiple scattering of resonance radiation on ODR signals was observed in a dense atomic beam of Ca at a Zeeman splitting of 2.5 GHz. The experiment yielded a limit of narrowing Ɗνlim = [MATH]Ɗνnat and a maximum time of flight shift δv/v= -0.28 %.