Search for dissertations about: "electron-electron"

Showing result 21 - 25 of 41 swedish dissertations containing the word electron-electron.

  2. 21. Resonant Soft X-ray Spectroscopic Studies of C60 and Related Materials

    Author : Tanel Käämbre; Arne Rosén; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : This thesis addresses the electronic structure of molecular and correlated solids using resonant inelastic soft X-ray scattering (RIXS), non-resonant X-ray emission, photoemissionand X-ray absorption spectroscopies. The use of monochromatised synchrotron radiation and improved energy resolution for X-ray emission have made it possible to elucidate the normal state transport properties and to get further insight into the electron-vibration coupling in fullerenes and the related compounds. READ MORE

  4. 22. Dynamics of open fermionic nano-systems -- a fundamental symmetry and its application to electron transport in interacting quantum dots

    Author : Jens Schulenborg; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fermion parity; voltage switch; quantum dot; open fermionic quantum system; fermionic duality; master equation; non-equilibrium transport; charging energy; inverted energy; transient response; energy-dependent coupling;

    Abstract : The study of electronic transport through strongly confined, interacting open quantum systems has regained considerable interest over the past years. One main motivation behind this concerns the possibility of time-dependently controlled operations on individual electrons, promising applications in, e.g. READ MORE

  5. 23. Time-dependent relaxation of charge and energy in electronic nanosystems

    Author : Jens Schulenborg; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; heat current; quantum dot; relaxation rate; rate detection; generalization of hermiticity; nonunitary dynamics; open quantum system; Coulomb charging energy; voltage switch; transient response; electronic nanosystem;

    Abstract : The study of the dynamics of strongly confined, interacting open quantum systems has attracted great interest over the past years, due to potential applications in nanoelectronics, metrology as well as quantum information. Most recent experimental and theoretical research in this field has shifted attention towards electronic heat currents, recognizing their potential for practical purposes as well as for tests of fundamental theories, and also aiming to control the inevitable heat dissipation of any dynamically operated electronic device. READ MORE

  6. 24. On transport theory of correlated mesoscopic systems

    Author : Vadim Cheianov; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Teoretisk fysik; Physics; Fysik; fysik; Physics;

    Abstract : This thesis is about the theory of quantum transport through low dimensional correlated systems. Correlated systems are interacting many-particle systems where collective effects predominate over the individual properties of particles whereof they consist. Single particle approach to correlated systems would be essentially wrong. READ MORE

  7. 25. Theoretical Studies of Electron Transport in Quantum Dot Structures

    Author : Carina Fasth; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : We calculate the phase property of the reflection coefficient in two-terminal structures using a lattice tight-binding model. It is seen that, provided that there exist two coherent reflection paths, the reflection probability can be zero for certain electron energies. READ MORE