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Landauer formula without Landauer's assumptions

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Published 31 October 2003 • IOP Publishing Ltd
, , Citation Mukunda P Das and Frederick Green 2003 J. Phys.: Condens. Matter 15 L687 DOI 10.1088/0953-8984/15/45/L01

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Author affiliations

1 Department of Theoretical Physics, Institute of Advanced Studies, Australian National University, Canberra, ACT 0200, Australia

2 Author to whom any correspondence should be addressed

Dates

  1. Received 9 October 2003
  2. Published

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0953-8984/15/45/L687

Abstract

The Landauer formula for dissipationless conductance lies at the heart of modern electronic transport, yet it remains without a clear microscopic basis. We analyse the Landauer formula microscopically and give a straightforward quantum kinetic derivation for open systems. Some important experimental implications follow. These lie beyond the Landauer result as popularly received.

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10.1088/0953-8984/15/45/L01