Jayannavar, A. M. ; Kumar, N. (1982) Nondiffusive quantum transport in a dynamically disordered medium Physical Review Letters, 48 (8). pp. 553-556. ISSN 0031-9007
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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.48.553
Related URL: http://dx.doi.org/10.1103/PhysRevLett.48.553
Abstract
For a dynamically disordered continuum it is found that the exact quantum mechanical mean square displacement x2(t)~t3, for t→∞. A Gaussian white-noise spectrum is assumed for the random potential. The result differs qualitatively from the diffusive behavior well known for the one-band lattice Hamiltonian, and is understandable in terms of the momentum cutoff inherent in the lattice, simulating a "momentum bath".
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 14544 |
| Deposited On: | 12 Nov 2010 14:47 |
| Last Modified: | 11 Jul 2012 08:17 |
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