Results 21 to 30 of about 811,445 (252)

Time-dependent current density functional theory on a lattice [PDF]

open access: yesPhysical Review B, 2010
A rigorous formulation of time-dependent current density functional theory (TDCDFT) on a lattice is presented. The density-to-potential mapping and the ${\cal V}$-representability problems are reduced to a solution of a certain nonlinear lattice Schr ...
E. A. Coddington, I. V. Tokatly
core   +3 more sources

Pairing dynamics and time dependent density functional theory [PDF]

open access: yesActa Physica Polonica B, 2018
We discuss issues related to pairing dynamics in nuclear large amplitude collective motion. The examples of effects which are not properly described within BCS theory are presented.
Grineviciute, J.   +2 more
core   +4 more sources

Predicting Phosphorescence Rates of Light Organic Molecules Using Time-Dependent Density Functional Theory and the Path Integral Approach to Dynamics. [PDF]

open access: yesJ Chem Theory Comput, 2019
In this work, we present a general method for predicting phosphorescence rates and spectra for molecules using time-dependent density functional theory (TD-DFT) and a path integral approach for the dynamics that relies on the harmonic oscillator ...
de Souza B, Farias G, Neese F, Izsák R.
europepmc   +2 more sources

Double‐pole approximation in time‐dependent density functional theory [PDF]

open access: green, 2006
A simple approximate solution to the linear response equations of time-dependent density functional theory (TDDFT) is given. This extends the single-pole approximation (SPA) to two strongly-coupled poles. The analysis provides both an illustration of how
Heiko Appel, E. K. U. Gross, K. Burke
openalex   +4 more sources

Relaxation in Time-Dependent Current-Density-Functional Theory [PDF]

open access: greenPhysical Review Letters, 2006
4 pages, 2 figures, Revtex4.
Roberto D’Agosta, Giovanni Vignale
openalex   +5 more sources

Nonadiabatic electron dynamics in time-dependent density-functional theory [PDF]

open access: green, 2006
Time-dependent density-functional theory (TDDFT) treats dynamical exchange and correlation (xc) via a single-particle potential, Vxc(r,t), defined as a nonlocal functional of the density n(r',t').
Carsten A. Ullrich, I. V. Tokatly
openalex   +4 more sources

Troubleshooting time-dependent density-functional theory for photochemical applications: Oxirane [PDF]

open access: green, 2007
The development of analytic-gradient methodology for excited states within conventional time-dependent density-functional theory (TDDFT) would seem to offer a relatively inexpensive alternative to better established quantum-chemical approaches for the ...
Felipe Córdova   +5 more
openalex   +5 more sources

Charge Transfer Enhancement in the D-π-A Type Porphyrin Dyes: A Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) Study. [PDF]

open access: yesMolecules, 2016
The electronic geometries and optical properties of two D-π-A type zinc porphyrin dyes (NCH3-YD2 and TPhe-YD) were systematically investigated by density functional theory (DFT) and time-dependent density functional theory (TD-DFT) to reveal the origin ...
Kang GJ, Song C, Ren XF.
europepmc   +2 more sources

Time-dependent density-functional theory for extended systems [PDF]

open access: greenReports on Progress in Physics, 2007
For the calculation of neutral excitations, time-dependent density functional theory (TDDFT) is an exact reformulation of the many-body time-dependent Schrodinger equation, based on knowledge of the density instead of the many-body wavefunction. The density can be determined in an efficient scheme by solving one-particle non-interacting Schrodinger ...
Silvana Botti   +3 more
openalex   +7 more sources

High-harmonic spectroscopy of transient two-center interference calculated with time-dependent density-functional theory. [PDF]

open access: yesStruct Dyn, 2019
We demonstrate high-harmonic spectroscopy in many-electron molecules using time-dependent density-functional theory. We show that a weak attosecond-pulse-train ionization seed that is properly synchronized with the strong driving mid-infrared laser field
Mauger F   +8 more
europepmc   +2 more sources

Home - About - Disclaimer - Privacy