Working flow
- Harmonic matrices for the system and its components are firstly generated, which established the harmonic relationship between any two atomic degree of freedom.
- Green’s functions of the system and its components are calculated from the harmonic matrices.
- frequency-depdendent phonon transmission is then generated, and integration is performed over the full frequency spectrum to get the net heat flow rate.
Self-energy matrices
Green’s function Matrices
- The response of a dynamic matric system to an infinitesimal perturbation can be discribed by a Green’s function.
Phonon transmission function & thermal conductance