5 citations · 5 across the 1 of their papers we have counts for
3 papers
Density-functional approach to the band gaps of finite and periodic two-dimensional systems
Alberto Guandalini, Alice Ruini, Esa Räsänen +2
We present an approach based on density-functional theory for the calculation of fundamental gaps of both finite and periodic two-dimensional (2D) electronic systems. The computati…
Nonlinear Light Absorption in Many-Electron Systems Excited by an Instantaneous Electric Field: A Non-Perturbative Approach
Alberto Guandalini, Caterina Cocchi, Stefano Pittalis +2
We study light absorption in many-electron interacting systems beyond the linear regime by using a {\em single} broadband impulse of an electric field in the instantaneous limit. W…
Fundamental gaps of quantum dots on the cheap
Alberto Guandalini, Carlo Andrea Rozzi, Esa Räsänen +1
We show that the fundamental gaps of quantum dots can be accurately estimated at the computational effort of a standard ground-state calculation supplemented with a non self-consis…