Geodesic
Quantum diffusion in irregular crystals having tunnel two-level systems
Teoretičeskaâ i matematičeskaâ fizika, Tome 106 (1996) no. 3, pp. 489-497 
L. L. Buishvili; L. J. Zakharov; A. I. Tugushi. Quantum diffusion in irregular crystals having tunnel two-level systems. Teoretičeskaâ i matematičeskaâ fizika, Tome 106 (1996) no. 3, pp. 489-497. http://geodesic.mathdoc.fr/item/TMF_1996_106_3_a10/
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     author = {L. L. Buishvili and L. J. Zakharov and A. I. Tugushi},
     title = {Quantum diffusion in irregular crystals having tunnel two-level systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {489--497},
     year = {1996},
     volume = {106},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1996_106_3_a10/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The quantum diffusion of admixture particles interacting with tunnel two-level systems is studied. It is shown that in the temperature region $\omega_0K, where $\omega_0$ is an average value of the energy disturbance of admixture particles in the neighbouring pits, and under the concentration $N_D\gtrsim 10^{27}\text m^{-3}$ of two-level systems the quantum diffusion coefficient of admixture particles is determined by their interaction with two-level systems.

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