Mathematical Challenges of Quantum Transport in Nano-Optoelectronic Systems - Abstract

Käso, Mathias

Heat transport in hybrid nanosystems using the atomic Green's functions

At the beginning of the talk we will be presenting the general formalism of the “Atomistic Green's Functions (AGF)”. This formalism allows us to study phononic heat transport problems in nanoscale devices. Then we will use this method to describe one dimensional, open systems with the typical contact-device-contact structure. Especially for the homogeneous atomic chain we will derive an analytical expression of the thermal conductance. Subsequently we discuss this result for low and for high temperatures.