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29 March 2024
 
  » arxiv » cond-mat/0210485

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Pauli blocking factors in quantum pumps
Sang Wook Kim ;
Date 22 Oct 2002
Journal Phys. Rev. B v.68, 033309 (2003)
Subject Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall
AbstractWe investigate the Pauli blocking factor in quantum pumps using Floquet formalism. Even though the time dependent potentials in quantum pumping can not only cause inelastic scatterings but also break the micro-reversibility, i.e. $T^+(E’,E) eq T^-(E,E’)$, the Pauli blocking factor is unnecessary when the scattering process through the scatterer is coherent. The well defined scattering states extending from one reservoir to the others form a complete non-orthogonal set. Regardless of the non-orthogonality one can obtain the pumped currents using the field operator formalism. The current expression finally obtained do not contain Pauli blocking factor.
Source arXiv, cond-mat/0210485
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