Thomas Ihn et al 2007 New J. Phys. 9 111 doi:10.1088/1367-2630/9/5/111
Interference in a quantum dot molecule embedded in a ring interferometer
Focus on Interference in Mesoscopic SystemsThomas Ihn1,3, Martin Sigrist1, Klaus Ensslin1, Werner Wegscheider2 and Matthias Reinwald2
Show affiliationsPart of Focus on Interference in Mesoscopic Systems
Interference experiments are presented involving electronic quantum transport through an artificial quantum dot molecule in the Coulomb blockade regime embedded in a ring interferometer. Full tunability and the high stability of the structure allowed the transmission phase through this system, spin-related interference phenomena, and Fano-type interference to be studied. When a part of the interferometer is itself tuned into the Coulomb blockade regime, a phase-coherently coupled triple dot system can be investigated. The experiments demonstrate the feasibility of complex quantum circuits with a high degree of phase-coherence.
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Issue 5 (May 2007)
Received 13 November 2006
Published 9 May 2007
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Interference in a quantum dot molecule embedded in a ring interferometer
Thomas Ihn et al 2007 New J. Phys. 9 111
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