Sigrist, Martin and Fuhrer, A. and Ihn, Thomas and Ensslin, Klaus and Wegscheider, Werner and Bichler, Max
Transmission phase through two quantum dots embedded in a four-terminal quantum ring.
Physica E Low-dimensional Systems and Nanostructures 22 (1-3), pp. 530-533.
We use the Aharonov–Bohm effect in a four-terminal ring based on a Ga[Al]As heterostructure for the measurement of the relative transmission phase. In each of the two interfering paths we induce a quantum dot. The number of electrons in the two dots can be controlled independently. The transmission phase is measured as electrons are added to or taken away from the individual quantum dots.