Shot noise and transport in small quantum cavities with large openings

Details Shot noise and transport in small quantum cavities with large openings Shot noise and transport in small quantum cavities with large openings

2002-08-29

arxiv.org/abs/cond-mat/0208576v1

Phys. Rev. B 66, 241302(R) (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.66.241302

We present a dynamical analysis of the transport through small quantum cavities with large openings. The systematic suppression of shot noise is used to distinguish direct, deterministic from indirect, indeterministic transport processes. The analysis is based on quantum mechanical calculations of $S$ matrices and their poles for quantum billiards with convex boundaries of different shape and two open channels in each of the two attached leads. Direct processes are supported when special states couple strongly to the leads, and can result in deterministic transport as signified by a striking system-specific suppression of shot noise.

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