Journal
EUROPEAN PHYSICAL JOURNAL B
Volume 91, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1140/epjb/e2018-90126-5
Keywords
-
Categories
Funding
- European Union project MaX Materials design at the eXascale [H2020- EINFRA-2015-1, 676598]
- Nano- science Foundries and Fine Analysis - Europe H2020-INFRAIA-2014-2015 [654360]
Ask authors/readers for more resources
The use of ultra-short laser pulses to pump and probe materials activates a wealth of processes which involve the coherent and non coherent dynamics of interacting electrons out of equilibrium. Non equilibrium (NEQ) many body perturbation theory (MBPT) offers an equation of motion for the density- matrix of the system which well describes both coherent and non coherent processes. In the non correlated case there is a clear relation between these two regimes and the matrix elements of the density-matrix. The same is not true for the correlated case, where the potential binding of electrons and holes in excitonic states need to be considered. In the present work we discuss how NEQ-MBPT can be used to describe the dynamics of both coherent and non-coherent excitons in the low density regime. The approach presented is well suited for an ab initio implementation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available