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Integral characteristics of wave packets in the problem of the evolution of a wave function on a one-dimensional lattice
V. N. Likhachev, G. A. Vinogradov Emanuel Institute of Biochemical Physics, RAS, Moscow,
Russia
Abstract:
We consider the quantum dynamics of charge transfer on a lattice in the tight-binding approximation and analytically calculate the integral characteristics of the wave packet propagating along the lattice. We focus on calculating the mean and root-mean-square displacements. We also obtain expressions for higher-order moments as series for squares of Bessel functions, which might be independently interesting.
Keywords:
quantum dynamics, tight-binding approximation,
moments of distribution function.
Received: 28.09.2017 Revised: 13.12.2017
Citation:
V. N. Likhachev, G. A. Vinogradov, “Integral characteristics of wave packets in the problem of the evolution of a wave function on a one-dimensional lattice”, TMF, 197:2 (2018), 257–268; Theoret. and Math. Phys., 197:2 (2018), 1615–1625
Linking options:
https://www.mathnet.ru/eng/tmf9496https://doi.org/10.4213/tmf9496 https://www.mathnet.ru/eng/tmf/v197/i2/p257
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Abstract page: | 274 | Full-text PDF : | 71 | References: | 33 | First page: | 13 |
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