Talking through the continuum: New manifestations of Fano-resonance phenomenology realized with mesoscopic nanostructures
2013 (English)In: Fortschritte der Physik, ISSN 0015-8208, E-ISSN 1521-3978, Vol. 61, no 2-3, 348-359 p.Article in journal (Refereed) Published
The focus of this review is recent work in which we have demonstrated a highly-flexible approach to the study of Fano-resonance phenomena, by making use of the mesoscopic devices known as quantum point contacts (QPCs). Utilizing the ability of these structures to function as an on-demand quantum state, we demonstrate a highly-flexible system for the investigation of Fano resonances. Our approach involves making measurements of non-locally coupled pairs of QPCs, one of which is used to form the discrete state needed for the Fano resonance, while the other serves as a detector whose conductance is sensitive to the energy of this state. As a demonstration of the flexibility of this approach, we show how it can be used to implement a multi-state Fano resonance, in which two discrete states undergo a robust interaction that is achieved by coupling them to each other through a common continuum.
Place, publisher, year, edition, pages
2013. Vol. 61, no 2-3, 348-359 p.
Fano resonance, mesoscopic physics, quantum point contact
IdentifiersURN: urn:nbn:se:uu:diva-196017DOI: 10.1002/prop.201200075ISI: 000314472400020OAI: oai:DiVA.org:uu-196017DiVA: diva2:609126