Sökning: "tunneling Hamiltonian formalism"
Hittade 3 avhandlingar innehållade orden tunneling Hamiltonian formalism.
1. On the Properties of Some Strongly Correlated Systems - Analytical and Numerical Studies
Sammanfattning : This thesis is dedicated to analytical and numerical studiesof a few models of strongly correlated systems and thedevelopment of techniques for such studies. The common name"strongly correlated" refers to systems in which theinteractions (correlations) between the constituent particleslead to nontrivial properties, such as various types ofmagnetism, superconductivity, and exotic phases. LÄS MER
2. Non-Orthogonality and Electron Correlations in Nanotransport : Spin- and Time-Dependent Currents
Sammanfattning : The concept of the transfer Hamiltonian formalism has been reconsidered and generalized to include the non-orthogonality between the electron states in an interacting region, e.g. quantum dot (QD), and the states in the conduction bands in the attached contacts. LÄS MER
3. Theory of Electron Transport in Superconducting Heterostructures
Sammanfattning : This thesis deals theoretically with electron transport in superconducting heterostructures. Depending on the system I use different theoretical approaches. The thesis contains an introduction followed by four research papers (Papers I-IV). The introduction gives the background of the work in Papers I-IV. LÄS MER