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Non-Equilibrium Aspects of Fission Dynamics within the Time Dependent Density Functional Theory [PDF]

open access: yesEPJ Web of Conferences
We will cover briefly the time-dependent density functional theory approach, extended to include pairing correlations, to induced fission of 238U(n,f), 241,243Pu, and 238Np, and also results on scission neutrons and a number of very nontrivial aspects of
Bulgac Aurel   +3 more
doaj   +1 more source

Minimal Optimized Effective Potentials for Density Functional Theory Studies on Excited-State Proton Dissociation

open access: yesMicromachines, 2021
Recently, a new method [P. Partovi-Azar and D. Sebastiani, J. Chem. Phys. 152, 064101 (2020)] was proposed to increase the efficiency of proton transfer energy calculations in density functional theory by using the T1 state with additional optimized ...
Pouya Partovi-Azar, Daniel Sebastiani
doaj   +1 more source

Dissipative Time Dependent Density Functional Theory [PDF]

open access: yesInternational Journal of Theoretical Physics, 2009
The simplest density functional theory due to Thomas, Fermi, Dirac and Weizsacker is employed to describe the non-equilibrium thermodynamic evolution of an electron gas. The temperature effect is introduced via the Fermi-Dirac entropy, while the irreversible dynamics is described by a nonlinear diffusion equation.
openaire   +2 more sources

DFT and TDDFT study on spectra of B24N24 fullerene

open access: yes四川大学学报. 自然科学版, 2023
The geometrical and electronic structure of B24N24 are optimized by using density functional theory (B3LYP) at the 6-31g(d) level. The results show that the geometrical structure symmetries of the optimized B24N24 clusters are S4, C2, S8, O. Based on the
GUO Ya-Jing, KU Yan-Bing, LI Xiu-Yan
doaj  

Superadiabatic Forces via the Acceleration Gradient in Quantum Many-Body Dynamics

open access: yesMolecules, 2019
We apply the formally exact quantum power functional framework (J. Chem. Phys. 2015, 143, 174108) to a one-dimensional Hooke’s helium model atom. The physical dynamics are described on the one-body level beyond the density-based adiabatic approximation ...
Moritz Brütting   +3 more
doaj   +1 more source

Benchmark Study on Phosphorescence Energies of Anthraquinone Compounds: Comparison between TDDFT and UDFT

open access: yesMolecules, 2023
Phosphorescent material is widely used in light-emitting devices and in the monitoring of cell phenomena. Anthraquinone compounds (AQs), as important phosphorescent materials, have potential applications as emitters for highly efficient organic light ...
Yujie Guo, Lingyu Zhang, Zexing Qu
doaj   +1 more source

Accurate optical spectra through time-dependent density functional theory based on screening-dependent hybrid functionals

open access: yesPhysical Review Research, 2020
We investigate optical absorption spectra obtained through time-dependent density functional theory (TD-DFT) based on nonempirical hybrid functionals that are designed to correctly reproduce the dielectric function.
Alexey Tal   +3 more
doaj   +1 more source

Charge transfer in time-dependent density functional theory [PDF]

open access: yesJournal of Physics: Condensed Matter, 2017
19 pages, 7 figures, review to appear in J. Phys.
openaire   +3 more sources

Proton-transfer dynamics in ionized water chains using real-time time-dependent density functional theory

open access: yesPhysical Review Research, 2020
In density functional–theoretic studies of photoionized water-based systems, the role of charge localization in proton-transfer dynamics is not well understood.
Vidushi Sharma, Marivi Fernández-Serra
doaj   +1 more source

Density-potential mapping in time-dependent density-functional theory [PDF]

open access: yesPhysical Review A, 2010
The key questions of uniqueness and existence in time-dependent density functional theory are usually formulated only for potentials and densities that are analytic in time. Simple examples, standard in quantum mechanics, lead however to non-analyticities.
Maitra, N.T.   +3 more
openaire   +3 more sources

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