Non-invasive study of transport in open quantum dot structures

A. E. Krishnaswamy; J. P. Bird; Stephen Goodnick

doi:10.1016/S1386-9477(03)00308-4

Non-invasive study of transport in open quantum dot structures

A. E. Krishnaswamy, J. P. Bird, Stephen Goodnick

Research output: Contribution to journal › Conference article › peer-review

Abstract

We discuss the response of a non-locally coupled quantum point contact to the transport properties of a quantum dot. With both structures biased in the tunneling regime, this setup allows for the detection of single-electron charging. We show here that non-local measurements may be used to detect features of the transport through open quantum dots, although the response of the detector to changes in the dot conductance is found to be very much more complicated than that exhibited by tunnel-coupled dots.

Original language	English (US)
Pages (from-to)	202-205
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	19
Issue number	1-2
DOIs	https://doi.org/10.1016/S1386-9477(03)00308-4
State	Published - Jul 1 2003
Event	Fourth International Symposium on Nanostructures and Mesoscopi - Tempe, AZ, United States Duration: Feb 17 2003 → Feb 21 2003

Keywords

Nanostructures
Quantum dots
Semiconductors
Single electron

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1386-9477(03)00308-4

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AU - Bird, J. P.

AU - Goodnick, Stephen

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N2 - We discuss the response of a non-locally coupled quantum point contact to the transport properties of a quantum dot. With both structures biased in the tunneling regime, this setup allows for the detection of single-electron charging. We show here that non-local measurements may be used to detect features of the transport through open quantum dots, although the response of the detector to changes in the dot conductance is found to be very much more complicated than that exhibited by tunnel-coupled dots.

AB - We discuss the response of a non-locally coupled quantum point contact to the transport properties of a quantum dot. With both structures biased in the tunneling regime, this setup allows for the detection of single-electron charging. We show here that non-local measurements may be used to detect features of the transport through open quantum dots, although the response of the detector to changes in the dot conductance is found to be very much more complicated than that exhibited by tunnel-coupled dots.

KW - Nanostructures

KW - Quantum dots

KW - Semiconductors

KW - Single electron

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JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

SN - 1386-9477

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