Jayannavar, AM and Kumar, N (1982) Nondiffusive Quantum Transport in a Dynamically Disordered Medium. In: Physical Review Letters, 48 (8). pp. 553-556.
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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:||Journal Article|
|Additional Information:||Copyright of this article belongs to the American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||14 Dec 2009 07:32|
|Last Modified:||19 Sep 2010 05:47|
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