Is inelastic cotunneling phase coherent?

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12475

Sigrist, Martin ; Ihn, Thomas ; Ensslin, Klaus ; Reinwald, Matthias ; Wegscheider, Werner

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Veröffentlichungsdatum dieses Volltextes: 25 Jan 2010 13:48

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Zusammenfassung

For low biases the linear conductance of quantum dots is based on elastic transport processes. At finite bias in the Coulomb blockade regime, inelastic cotunneling sets in once the applied bias exceeds the energy between ground and excited state in the dot. Here we report on transport experiments through an Aharonov-Bohm ring containing a quantum dot in each arm of the ring. The tunnel coupling ...