Many-particle approach to the image-charge effect
Microscopical systems of molecules and atomic chains are studied to obtain information about quantum-transport phenomena. Both exact diagonalization method through second quantization and perturbation theory approach with Feynman diagrams are described, and then the energy spectra for the studied systems are calculated using the two methods.
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Many-particle approach to lead-molecule interactions and to the image-charge effect
Korhonen, Topi (2011) -
Contour calculus for many-particle functions
Hyrkäs, Markku; Karlsson, Daniel; van Leeuwen, Robert (IOP Publishing, 2019) -
Many-particle theory for time-dependent quantum transport in nanostructures
Myöhänen, Petri (University of Jyväskylä, 2012)During the recent decades, molecular electronics has established its place as one of the promising fields in the nanoscience. The possibility to manufacture and control molecular junctions where single molecules are ... -
Numerical studies of transport in complex many-particle systems far from equilibrium
Kauttonen, Janne (University of Jyväskylä, 2012)In this Thesis, transport in complex nonequilibrium many-particle systems is studied using numerical master equation approach and Monte Carlo simulations. We focus on the transport of the center-of-mass of deformable ... -
Partial self-consistency and analyticity in many-body perturbation theory: Particle number conservation and a generalized sum rule
Karlsson, Daniel; van Leeuwen, Robert (American Physical Society, 2016)We consider a general class of approximations which guarantees the conservation of particle number in many-body perturbation theory. To do this we extend the concept of derivability for the self-energy to a larger class ...
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