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Information × Registration Number 0218U007801, 0118U001394 , R & D reports Title Quantum theory of phonon-assisted tunneling of electrons through multilayer resonance-tunneling nanostructures as functional elements of nanodevices popup.stage_title Head Seti Yuliia Oleksandrivna, Registration Date 20-12-2018 Organization Yuri Fedkovych Chernivtsi National University popup.description2 In realistic models of spatially dependent effective mass and potential energy of an electron in a semiconductor plane nanosystem, exact solutions of the Schr?dinger equation, the coefficient of transparency and the scattering matrix are found. On the example of nanosystems with In0.52Al0.48As barriers and In0.53Ga0.47As wells as an element of quantum cascade detectors and lasers, an analysis of the dependences of the spectral parameters of quasi-stationary states of the electron on the size of the boundary layers was performed. The theory of the spectrum of a localized two-level quasiparticle renormalized by interaction with polarization phonons at a cryogenic temperature is developed based on the generalized method of the Feynman-Pines diagram technique. A partial summation of boundless series of main diagrams yields a mass operator in a compact form of branched chain fraction. The influence of multiphonon processes and inter-level interaction of a quasiparticle with phonons on the spectrum of the system is investigated. Product Description popup.authors Іваночко Михайло Миколайович Гуцул Василь Іванович Маханець Олександр Михайлович Сеті Юлія Олександрівна Ткач Микола Васильович popup.nrat_date 2020-04-02 Close