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Attenuation of the off-diagonal elements of the channeled particle density matrix

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.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 83–87, August, 1991.

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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

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Keywords

  • Attenuation
  • Coherence
  • Probability Density
  • Quantum State
  • Penetration Depth