8 citations · 8 across the 3 of their papers we have counts for
5 papers
Control of resonant ionization as a function of time delay between two XUV few-femtosecond pulses. Quantitative application to helium
Theodoros Mercouris, Yannis Komninos, Cleanthes A. Nicolaides
It is shown that it is feasible to use ultrashort time delay between two XUV femtosecond pulses in order to control two photon resonant ionization. The proposal is demonstrated on…
The solution of many electron problems arising when radiation pulses interact with closed or open shell multielectron atomic and molecular states
Cleanthes A. Nicolaides
The paper reviews briefly elements from our work on the solution of various field induced, time independent or time dependent many electron problems, which has been developed and c…
Resonances in the continuum, field induced nonstationary states, and the state and property specific treatment of the many electron problem
Cleanthes A. Nicolaides
The paper summarizes elements of theories and computational methods that we have constructed and applied over the years for the nonperturbative solution of many electron problems,…
Quantum Chemistry on the time axis: electron correlations and rearrangements on femtosecond and attosecond scales
Cleanthes A. Nicolaides
Recent developments toward the production and laboratory use of pulses of high intensity, and/or of very high frequency, and/or of ultrashort duration, make possible experiments wh…
Theory and computation of electromagnetic transition matrix elements in the continuous spectrum of atoms
Yannis Komninos, Theodoros Mercouris, Cleanthes A. Nicolaides
The present study examines the mathematical properties of the free-free ( f-f) matrix elements of the full electric field operator, of the multipolar Hamiltonian. Special methods a…