Sökning: "nonequilibrium current"
Visar resultat 6 - 10 av 16 avhandlingar innehållade orden nonequilibrium current.
6. Dissipative Processes in Superconducting Diffusive Tunnel Junctions
Sammanfattning : A central subject of this thesis is the dissipative current transport in superconducting tunnel junctions with diffusive electrodes. Tunnel current transport in superconducting junctions is a classical topic of interest and research. LÄS MER
7. Transport in mesoscopic superconducting devices
Sammanfattning : A field of growing interest within the last few decades is the study of superconductivity in mesoscopic-scale heterostructures. Mesoscopic refers to sizes between the atomic and macroscopic scales. LÄS MER
8. Quantum dynamics of spin active and d-wave Josephson junctions
Sammanfattning : Conventional tunnel Josephson junctions form the basic building blocks of superconducting electronics. Their operation is based on comparatively simple dynamics where the superconducting phases across the junctions is the only dynamical degree of freedom. LÄS MER
9. Theoretical Developments for the Real-Time Description and Control of Nanoscale Systems
Sammanfattning : In this thesis we focus on improvements of the description of the electron-electron correlation effects in nonequilibrium nanosystems. We mainly focus on developments of two nonequilibrium methods, namely the formalism of Nonequilibrium Green’s Function and Time Dependent Density Functional Theory and we explore the possibility to improve existing approximations in these theories. LÄS MER
10. Modeling Variable Density and Radiation Effects in Turbulent Flames with Fast Chemistry
Sammanfattning : The thesis focuses on the less known, but important, aspects of turbulent combustion, namely the variable density and radiation effects. A fundamental discussion of the basic physical phenomena involved in the pressure-density interactions is provided. Current modeling approaches are discussed and simple modifications of the k - .epsilon. LÄS MER