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2004 Europhys. Lett. 67 439-445 doi: 10.1209/epl/i2004-10084-x
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Abstract. Three-terminal tunnelling experiments on quantum dots in the Coulomb-blockade regime allow a quantitative determination of the coupling strength of individual quantum states to the leads. Exploiting this insight, we have observed independent fluctuations of the coupling strengths as a function of electron number and magnetic field due to changes in the shape of the wave function in the dot. Such a detailed understanding and control of the dot-lead coupling can be extended to more complex systems such as coupled dots, and are essential for building functional quantum electronic systems.
PACS numbers: 73.23.Hk, 73.63.Kv
Print publication: Issue 3 (August 2004) |
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