Abstract
Using the quantum theory of channeling, the problem of determining the coherence length is solved, starting with which the off-diagonal elements of the density matrix are attenuated. In the general case, the populations of the quantum states are calculated, which determine the probability density of transitions of channeled particles from a discrete into a continuous spectrum as a function of the penetration depth.
Similar content being viewed by others
Literature cited
Yu. Kagan and Yu. V. Kononets, Zh. Éksp. Teor. Fiz.,58, 226 (1970).
J. Lindhard, Mat.-Fyz. Nedd. Dan Vid. Selsk.,34, No. 14, (1965).
S. M. Rytov, Introduction to Statistical Radiophysics Part 1 — Random Processes [in Russian], Nauka, Moscow (1976).
V. P. Koshcheev, Izv. Vyssh. Uchebn. Zaved. Fiz., No. 11, 95 (1989).
V. P. Koshcheev, Izv. Vyssh. Uchebn. Zaved. Fiz., No. 4, 123 (1990).
V. P. Koshcheev, Zh. Tekh. Fiz.,60, No. 7, 175 (1990).
V. I. Tatarskii, Usp. Fiz. Nauk,139, No. 4, 587 (1983).
O. I. Sumbaev, Zh. Tekh. Fiz.,57, No. 11, 2067 (1987).
J. U. Andersen et al., Phys. Scr.,28, 308 (1983).
M. L. Ter-Mikaelyan, Effect of the Medium on Electromagnetic Processes at High Energies [in Russian], Akad. Nauk ArmSSR, Erevan (1969).
V. A. Bazylev, V. I. Glebov, and V. V. Goloviznin, Zh. Tekh. Fiz.,61, No. 1(7), 25 (1991).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 83–87, August, 1991.
Rights and permissions
About this article
Cite this article
Koscheev, V.P. Attenuation of the off-diagonal elements of the channeled particle density matrix. Soviet Physics Journal 34, 717–721 (1991). https://doi.org/10.1007/BF01103503
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01103503