Dynamic electron transport theory for multiprobe mesoscopic structures

doi:10.1088/1674-1056/20/7/077201

Abstract Using the linear response theory and random phase approximation, we develop a general dynamic electron transport theory for multiprobe mesoscopic structures in an arbitrarily time-dependent external field. In this case, the responses of the dynamic current, charge and internal potential to the external fields can be determined self-consistently. Without loss of generality, charge (current) conservation and gauge invariance under a potential shift are satisfied. As an example, we employ a quantum wire with a single barrier to discuss the response of the internal potential.

Keywords: mesoscopic structure linear response theory electron transport quantum wire

Received: 30 December 2010
Revised: 06 March 2011
Accepted manuscript online:

PACS:	72.10.-d	(Theory of electronic transport; scattering mechanisms)
	73.23.-b	(Electronic transport in mesoscopic systems)

Cite this article:

Quan Jun(全军), Tian Ying (田英), Zhang Jun(张军), and Shao Le-Xi(邵乐喜) Dynamic electron transport theory for multiprobe mesoscopic structures 2011 Chin. Phys. B 20 077201

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Dynamic electron transport theory for multiprobe mesoscopic structures

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