24 citations · 65 across the 5 of their papers we have counts for
5 papers
Electronic Green's functions in a T-shaped multi-quantum dot system
I. Tifrea, G. Pal, M. Crisan
We developed a set of equations to calculate the electronic Green's functions in a T-shaped multi-quantum dot system using the equation of motion method. We model the system using…
Energy gap in graphene nanoribbons with structured external electric potentials
W. Apel, G. Pal, L. Schweitzer
The electronic properties of graphene zig-zag nanoribbons with electrostatic potentials along the edges are investigated. Using the Dirac-fermion approach, we calculate the energy…
Optical response of small closed-shell sodium clusters
George Pal, Georgios Lefkidis, Hans Christian Schneider +1
Absorption spectra of closed-shell Na_2, Na_3+, Na_4, Na_5+, Na_6, Na_7+, and Na_8 clusters are calculated using a recently implemented conserving linear response method. In the fr…
Optical absorption spectra of finite systems from a conserving Bethe-Salpeter equation approach
George Pal, Yaroslav Pavlyukh, Wolfgang Hübner +1
We present a method for computing optical absorption spectra by means of a Bethe-Salpeter equation approach, which is based on a conserving linear response calculation for electron…
Conserving quasiparticle calculations for small metal clusters
George Pal, Yaroslav Pavlyukh, Hans Christian Schneider +1
A novel approach for GW-based calculations of quasiparticle properties for finite systems is presented, in which the screened interaction is obtained directly from a linear respons…