Instituto de Ciencia de Materiales de Madrid
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Current and noise suppression in ac-driven coherent transport

Sigmund Kohler, Michael Strass, Peter Hänggi, Miguel Rey, and Fernando Sols
AIP Conf. Proc. 780, 45 (2005); 18th International Conference on Noise and Fluctuations

We investigate the possibility to manipulate for the transport through heterostructures the dc current and its noise properties by an ac gate voltage. For a computation of the noise strength, we map the system to a tight-binding model for which noise suppression by ac fields has been predicted recently. The quality of this description is tested by comparing the transmission of the tight-binding system with a transfer-matrix approach.

[ICMM-CSIC] [Condensed Matter Theory]
last modified: 15.3.2024 by Sigmund Kohler