19 research outputs found
Information transfer through disordered media by diffuse waves
We consider the information content h of a scalar multiple-scattered, diffuse
wave field and the information capacity C of a communication
channel that employs diffuse waves to transfer the information through a
disordered medium. Both h and C are shown to be directly related to the
mesoscopic correlations between the values of at different
positions in space, arising due to the coherent nature of the wave.
For the particular case of a communication channel between two identical linear
arrays of equally-spaced transmitters/receivers (receiver spacing a),
we show that the average capacity and obtain explicit analytic
expressions for in the limit of and ,
where , is the wavelength, and is the mean
free path. Modification of the above results in the case of finite but large n
and is discussed as well.Comment: REVTeX 4, 12 pages, 7 figure
Thermosensitive and Control Release Behavior of Poly(N-isopropylacrylamide –co– acrylic acid) Latex Particles
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