Results 1 to 10 of about 1,338,720 (179)
Combining density-functional theory and density-matrix-functional theory [PDF]
Physical Review A, 2010 We combine density-functional theory with density-matrix functional theory to get the best of both worlds. This is achieved by range separation of the electronic interaction which permits to rigorously combine a short-range density functional with a long-range density-matrix functional.
Rohr, Daniel R. +2 more
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Entropic Density Functional Theory
Entropy, 2023 A formulation of density functional theory (DFT) is constructed as an application of the method of maximum entropy for an inhomogeneous fluid in thermal equilibrium. The use of entropy as a systematic method to generate optimal approximations is extended
Ahmad Yousefi, Ariel Caticha
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Implicit density-functional theory [PDF]
Physical Review A, 2006 A fermion ground state energy functional is set up in terms of particle density, relative pair density, and kinetic energy tensor density. It satisfies a minimum principle if constrained by a complete set of compatibility conditions. A partial set, which thereby results in a lower bound energy under minimization, is obtained from the solution of model ...
Liu, Bin, Percus, Jerome K.
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From Density Functional Theory to Conceptual Density Functional Theory and Biosystems
Pharmaceuticals, 2022 The position of conceptual density functional theory (CDFT) in the history of density functional theory (DFT) is sketched followed by a chronological report on the introduction of the various DFT descriptors such as the electronegativity, hardness ...
Paul Geerlings
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Noncollinear density functional theory
Physical Review Research, 2023 An approach to generalize any kind of collinear functional in density functional theory to noncollinear functionals is proposed. This approach satisfies the correct collinear limit for any kind of functional, guaranteeing that the exact collinear ...
Zhichen Pu +8 more
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Spin in density‐functional theory [PDF]
International Journal of Quantum Chemistry, 2012 AbstractThe accurate description of open‐shell molecules, in particular of transition metal complexes and clusters, is still an important challenge for quantum chemistry. Although density‐functional theory (DFT) is widely applied in this area, the sometimes severe limitations of its currently available approximate realizations often preclude its ...
Jacob Christoph R., Reiher Markus
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Non-Abelian density functional theory [PDF]
Journal of Physics A: Mathematical and General, 1998 1 .eps ...
Rosensteel, G., Dankova, Ts.
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Current densities in density-functional theory [PDF]
Physical Review A, 2013 It is well known that any given density rho(x)can be realized by a determinantal wave function for N particles. The question addressed here is whether any given density rho(x) and current density j(x) can be simultaneously realized by a (finite kinetic energy) determinantal wave function.
Lieb, Elliott H., Schrader, Robert
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Machine learning for improved density functional theory thermodynamics [PDF]
Scientific ReportsThe predictive accuracy of density functional theory (DFT) for alloy formation enthalpies is often limited by intrinsic energy resolution errors, particularly in ternary phase stability calculations.
Sergei I. Simak +2 more
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Multilevel Density Functional Theory [PDF]
Journal of Chemical Theory and Computation, 2021 We introduce a novel density-based multilevel approach in density functional theory. In this multilevel density functional theory (MLDFT), the system is partitioned in an active and an inactive fragment, and all interactions are retained between the two parts.
Marrazzini, Gioia +5 more
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