Intermediate-time dynamics of a particle on a disordered tight-binding lattice: quantum dissipation versus disorder

C. Aslangul, N. Pottier and D. Saint-James

Physica A: Statistical Mechanics and its Applications, 1989, vol. 159, issue 1, 63-90

Abstract: We investigate by a generalized Born appriximation the quantum dynamics of a dissipative particle on a tight-binding disordered one-dimensional lattice. When the friction is ohmic or underohmic (at zero temperature), the particle evolution is shown to be governed at intermediate times by a generalized master equation (i.e. retarded) for the site-diagonal elements of the density matrix. This model allows for a discussion of the interplay of the effects of quantum noise and disorder.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:159:y:1989:i:1:p:63-90

DOI: 10.1016/0378-4371(89)90149-0

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