Boltzmann equation approach to transport in finite modular quantum systems

Details Boltzmann equation approach to transport in finite modular quantum systems Boltzmann equation approach to transport in finite modular quantum systems

2007-06-25

arxiv.org/abs/0706.3607v1

Phys. Rev. B 76, 024306 (2007)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevB.76.024306

We investigate the transport behavior of finite modular quantum systems. Such systems have recently been analyzed by different methods. These approaches indicate diffusive behavior even and especially for finite systems. Inspired by these results we analyze analytically and numerically if and in which sense the dynamics of those systems are in agreement with an appropriate Boltzmann equation. We find that the transport behavior of a certain type of finite modular quantum systems may indeed be described in terms of a Boltzmann equation. However, the applicability of the Boltzmann equation appears to be rather limited to a very specific type of model.

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