Skobeltsyn Institute of Nuclear Physics
Lomonosov Moscow State University

In work energy of particles is considered as a signal, capable to carry the certain information on their movement. The principle of finiteness of amount of the information demands presence from a signal of so-called threshold and limit restrictions. It is shown, that main effects of the quantum mechanics are display of threshold information restrictions; the limit is caused by known restriction of force of physical interaction in a combination to relativistic restriction of speed. From set of threshold and limit restrictions the greatest possible physical density of transfer of the information is found.