72 citations · 72 across the 1 of their papers we have counts for
9 papers
Unphysical and Physical Solutions in Many-Body Theories: from Weak to Strong Correlation
Adrian Stan, Pina Romaniello, Santiago Rigamonti +2
Many-body theory is largely based on self-consistent equations that are constructed in terms of the physical quantity of interest itself, for example the density. Therefore, the ca…
Correlation effects in bistability at the nanoscale: steady state and beyond
E. Khosravi, A. -M. Uimonen, A. Stan +4
The possibility of finding multistability in the density and current of an interacting nanoscale junction coupled to semi-infinite leads is studied at various levels of approximati…
Comparative study of many-body perturbation theory and time-dependent density functional theory in the out-of-equilibrium Anderson model
A. -M. Uimonen, E. Khosravi, A. Stan +4
We study time-dependent electron transport through an Anderson model. The electronic interactions on the impurity site are included via the self-energy approximations at Hartree-Fo…
Kadanoff-Baym approach to time-dependent quantum transport in AC and DC fields
Petri Myöhänen, Adrian Stan, Gianluca Stefanucci +1
We have developed a method based on the embedded Kadanoff-Baym equations to study the time evolution of open and inhomogeneous systems. The equation of motion for the Green's funct…
Kadanoff-Baym approach to quantum transport through interacting nanoscale systems: From the transient to the steady-state regime
Petri Myohanen, Adrian Stan, Gianluca Stefanucci +1
We propose a time-dependent many-body approach to study the short-time dynamics of correlated electrons in quantum transport through nanoscale systems contacted to metallic leads.…
Levels of self-consistency in the GW approximation
Adrian Stan, Nils Erik Dahlen, Robert van Leeuwen
We perform calculations on atoms and diatomic molecules at different levels of self-consistency and investigate the effects of self-consistency on total energies, ionization p…