Boltzmann-equation approach to transport in finite modular quantum systems

Autor(en): Kadiroglu, Mehmet
Gemmer, Jochen 
Stichwörter: CONDUCTIVITY; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Applied; Physics, Condensed Matter; SPACE
Erscheinungsdatum: 2007
Herausgeber: AMER PHYSICAL SOC
Journal: PHYSICAL REVIEW B
Volumen: 76
Ausgabe: 2
Zusammenfassung: 
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 analytically and numerically analyze 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.
ISSN: 10980121
DOI: 10.1103/PhysRevB.76.024306

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