Matinyan S.G. – TechConnect Briefs

tunneling rate in chaotic quantum system

Filikhin I., Matinyan S.G., Vlahovic B., North Carolina Central University, US

We study electron spectra and electron tunneling in double quantum systems: quantum wells (QWs), quantum dots (QDs) and quantum rings (QRs). We especially study the relation between their chaotic properties and tunneling. In particular we [...]

Anti-Crossing Levels and Electron Tunneling in Quantum Rings

Filikhin I., Matinyan S.G., Nimmo J., Vlahovic B., North Carolina Central University, US

Quantum Rings (QR) attracted attention during the last decade because of remarkable meso and nano-structures, due to non-simple connected topology. In our work [3] it was shown that in the weakly coupled double concentric quantum [...]

Dynamical Tunneling in the Systems of Double Quantum Dots and Rings

Filikhin I., Matinyan S.G., Vlahovic B., North Carolina Central University, US

We are modeling the InAs double QDs and QRs, embedded into the GaAs substrate. For the numerical modeling we apply an effective approach] in which the combined effect of strain, piezoelectricity and interband interactions are [...]

Electron Transition Between Weakly Coupled Concentric Quantum Rings

Filikhin I., Matinyan S.G., Nimmo J., Vlahovic B., North Carolina Central University, US

We investigate the electron wavefunction localization in double concnetric quantum rings when a magentic field is applied.

Neighbouring Levels Statistic and Shape of Quantum Dots: Si/Sio2

Filikhin I., Matinyan S.G., Vlahovic B., North Carolina Central University, US

We model the Si quantum dots (QDs) embedded into the SiO2 substrate. Single sub-band effective mass approach is used to calculate energy levels of electrons and heavy holes. For weak confinement regime (QD size D [...]