Correlation induced resonances in transport through coupled quantum dots

Details Correlation induced resonances in transport through coupled quantum dots Correlation induced resonances in transport through coupled quantum dots

2005-10-26

arxiv.org/abs/cond-mat/0510686v3

Phys. Rev. Lett. 96, 146801 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4+ pages, 5 figures included, version accepted for publication in PRL

Scientific paper

10.1103/PhysRevLett.96.146801

We investigate the effect of local electron correlations on transport through parallel quantum dots. The linear conductance as a function of gate voltage is strongly affected by the interplay of the interaction U and quantum interference. We find a pair of novel correlation induced resonances separated by an energy scale that depends exponentially on U. The effect is robust against a small detuning of the dot energy levels and occurs for arbitrary generic tunnel couplings. It should be observable in experiments on the basis of presently existing double-dot setups.

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