Results 11 to 20 of about 811,421 (270)

Excitations in Time-Dependent Density-Functional Theory [PDF]

open access: yesPhysical Review Letters, 2003
An approximate solution to the time-dependent density functional theory (TDDFT) response equations for finite systems is developed, yielding corrections to the single-pole approximation. These explain why allowed Kohn-Sham transition frequencies and oscillator strengths are usually good approximations to the true values, and why sometimes they are not.
Appel, H., Gross, E. K. U., Burke, K.
openaire   +4 more sources

Time-dependent density-functional theory for superfluids [PDF]

open access: yesEurophysics Letters (EPL), 2001
A density-functional theory is established for inhomogeneous superfluids at finite temperature, subject to time-dependent external fields in isothermal conditions. After outlining parallelisms between a neutral superfluid and a charged superconductor, Hohenberg-Kohn-Sham-type theorems are proved for gauge-invariant densities and a set of Bogolubov ...
CHIOFALO, MARIA LUISA, Tosi MP
openaire   +5 more sources

Progress in Time-Dependent Density-Functional Theory [PDF]

open access: yesAnnual Review of Physical Chemistry, 2012
The classic density-functional theory (DFT) formalism introduced by Hohenberg, Kohn, and Sham in the mid-1960s is based on the idea that the complicated N-electron wave function can be replaced with the mathematically simpler 1-electron charge density in electronic structure calculations of the ground stationary state.
Casida, M. E., Huix-Rotllant, M.
openaire   +6 more sources

Continuum states from time-dependent density functional theory [PDF]

open access: yesThe Journal of Chemical Physics, 2005
Linear response time-dependent density functional theory is used to study low-lying electronic continuum states of targets that can bind an extra electron. Exact formulas to extract scattering amplitudes from the susceptibility are derived in one dimension.
Wasserman, Adam   +2 more
openaire   +4 more sources

New developments in fission studies within the time-dependent density functional theory framework [PDF]

open access: yesEPJ Web of Conferences, 2023
We have extended significantly the microscopic description of the fission process by examining a larger set of observables. We extract neutron and proton numbers of fission fragments, their spins and fission fragment relative orbital angular momentum and
Bulgac Aurel
doaj   +1 more source

Time-dependent density-functional theory [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2009
Editorial.-- El pdf es la versión post-print.
Rubio, Angel, Marques, Miguel A. L.
openaire   +3 more sources

Time Evolution of Plasmonic Features in Pentagonal Ag Clusters

open access: yesMolecules, 2023
In the present work, we apply recently developed real-time descriptors to study the time evolution of plasmonic features of pentagonal Ag clusters. The method is based on the propagation of the time-dependent Schrödinger equation within a singly excited ...
Nicola Domenis   +5 more
doaj   +1 more source

Time Dependent- Density Functional Theory calculations on frequency-dependent photophysical properties of 2, 3-diphenylcyclopropenone

open access: yesFountain Journal of Natural and Applied Sciences (FUJNAS), 2017
Time Dependent Density Functional Theory (TD-DFT/B3LYP/6-31G*) calculations have been performed on the optimized structure of 2, 3-diphenylcyclopropenone (DPCP) in the UV region of the spectra; giving energies, oscillator strength, dipole moment, µ and ...
N. O. Obi-Egbedi, M. D. Adeoye
doaj   +3 more sources

Non-adiabatic approximations in time-dependent density functional theory: progress and prospects

open access: yesnpj Computational Materials, 2023
Time-dependent density functional theory continues to draw a large number of users in a wide range of fields exploring myriad applications involving electronic spectra and dynamics.
Lionel Lacombe, Neepa T. Maitra
doaj   +1 more source

Modeling of plasmonic properties of nanostructures for next generation solar cells and beyond

open access: yesAdvances in Physics: X, 2021
Plasmonic particles and nanostructures are widely used in photovoltaic and photonics. Surface plasmons were found to enhance different types of solar cells including plasmonic DSSCs, plasmonic solid semiconductor solar cells, plasmonic organic solar ...
Sergei Manzhos   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy