288 citations · 1.2k across the 22 of their papers we have counts for
6 papers · 1 filter
Ultrafast Electron-Phonon Decoupling in Graphite
Kunie Ishioka, Muneaki Hase, Masahiro Kitajima +3
We report the ultrafast dynamics of the 47.4 THz coherent phonons of graphite interacting with a photoinduced non-equilibrium electron-hole plasma. Unlike conventional materials, u…
On the use of Neumann's principle for the calculation of the polarizability tensor of nanostructures
Micael J. T. Oliveira, Alberto Castro, Miguel A. L. Marques +1
The polarizability measures how the system responds to an applied electrical field. Computationally, there are many different ways to evaluate this tensorial quantity, some of whic…
Optical saturation driven by exciton confinement in molecular-chains: a TDDFT study
Daniele Varsano, Andrea Marini, Angel Rubio
We have identified excitonic confinement in one-dimensional molecular chains (i.e. polyacetylene and H) as the main driving force for the saturation of the chain polarizability…
Conserving GW scheme for nonequilibrium quantum transport in molecular contacts
Kristian S. Thygesen, Angel Rubio
We give a detailed presentation of our recent scheme to include correlation effects in molecular transport calculations using the GW approximation within the non-equilibrium Keldys…
Optimal laser-control of double quantum dots
E. Rasanen, A. Castro, J. Werschnik +2
Coherent single-electron control in a realistic semiconductor double quantum dot is studied theoretically. Using optimal-control theory we show that the energy spectrum of a two-di…
A time-dependent density functional theory scheme for efficient calculations of dynamic (hyper)polarizabilities
Xavier Andrade, Silvana Botti, Miguel A. L. Marques +1
We present an efficient perturbative method to obtain both static and dynamic polarizabilities and hyperpolarizabilities of complex electronic systems. This approach is based on th…