Basic Modeling of Openness, Quantum States and Transport in Two- and Three-Dimensional Ballistic Cavities
2010 (English)In: Journal of Siberian Federal University. Mathematics & Physics, Vol. 3, 280-288 p.Article in journal (Refereed) Published
A basic model for particle states and current flow in open quantum dots/billiards are investigated. The model is unconventional and extends the use of complex potentials first introduced in phenomenological nuclear inelastic scattering theory (the optical model). Attached leads/source drain are represented by complex potentials. Probability densities and currents flows for open 2D quantum dots/billiards are calculated and the results are compared with microwave measurements used to emulate the dot. We also apply the model to a recangular enclosure and report on helical flows guided by nodal lines and disc-like accumulations of flow lines. The model is of conceptual as well as practical and educational interest.
Place, publisher, year, edition, pages
2010. Vol. 3, 280-288 p.
nano-scale systems, quantum dots, microwave billiards, quantum transport, vortices, helical motion, streamlines
IdentifiersURN: urn:nbn:se:liu:diva-62374OAI: oai:DiVA.org:liu-62374DiVA: diva2:373111