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A. K. Theophilou

Observed names: A K Theophilou, A Theophilou, A. Theophilou, A.K. Theophilou, ANDREAS K. THEOPHILOU, Andreas K Theophilou, Andreas K. Theophilou, Andreas Theophilou, Theophilou, A. K.
Observed institutions: City College of New York, Max Planck Society, City University of New York, National Centre of Scientific Research "Demokritos", Max Planck Institute for Solid State Research, Institute of Nanoscience and Nanotechnology, University of Salford, Delft University of Technology
ORCID: 0000-0002-0520-7962
Observed ORCID: 0000-0002-0520-7962
OpenAlex ID: A5088034876
The energy density functional formalism for excited states
1979 · A K Theophilou · Journal of Physics C Solid State Physics · 353
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Rigorous formulation of Slater’s transition-state theory for excited states
1985 · Nicolas Hadjisavvas, Andreas Theophilou · Physical Review A · 83
Metallic-Field Effect and Its Consequences in Field Emission, Field Ionization, and the Capacitance of a Capacitor
1972 · A. K. Theophilou, A. Modinos · Physical review. B, Solid state · 68
Rigorous formulation of the Kohn and Sham theory
1984 · Nicolas Hadjisavvas, Andreas Theophilou · Physical Review A · 52
Local spin-density approximation for spin eigenspaces and its application to the excited states of atoms
2000 · Andreas K. Theophilou, Petros G. Papaconstantinou · Physical Review A · 43
Hartree-Fock equations determining the optimum set of spin orbitals for the expansion of excited states
1994 · Nikitas Gidopoulos, Andreas Theophilou · Philosophical Magazine B · 41
Density-functional theory with effective potential expressed as a mapping of the external potential: Applications to open-shell molecules
2006 · Andreas K. Theophilou, Vitaly N. Glushkov · The Journal of Chemical Physics · 35
A novel density functional theory for atoms, molecules, and solids
2018 · Andreas K. Theophilou · The Journal of Chemical Physics · 29
An analytic estimate of the field penetration into metal surfaces
1972 · A K Theophilou · Journal of Physics F Metal Physics · 26
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Density functional theory for excited states
1994 · A. K. Theophilou · Philosophical Magazine B · 22
Rigorous formulation of a Kohn and Sham theory for states with special symmetries
1998 · Andreas K. Theophilou · International Journal of Quantum Chemistry · 20
DFT with effective potential expressed as a mapping of the external potential: Applications to closed‐shell molecules
2005 · Andreas K. Theophilou, Vitaly Glushkov · International Journal of Quantum Chemistry · 19
Density functional theory for excited states
1995 · Andreas K. Theophilou, Nikitas I. Gidopoulos · International Journal of Quantum Chemistry · 19
Finite-basis-set implementation of subspace density-functional theory for excited states
2001 · V. N. Glushkov, A. K. Theophilou · Physical Review A · 18
Density functional theory for excited states and special symmetries
1997 · Andreas K. Theophilou · International Journal of Quantum Chemistry · 17
Spin contamination for Hartree-Fock, optimized effective potential, and density functional approximations
2007 · Iris Theophilou, S. Thanos, et al. · The Journal of Chemical Physics · 16
Application of the subspace density functional theory to the excitation energies of molecules
2002 · V N Glushkov, A K Theophilou · Journal of Physics B Atomic Molecular and Optical Physics · 15
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Bounds on the overlap of the Hartree-Fock, optimized effective potential, and density functional approximations with the exact energy eigenstates
2006 · S. Thanos, A. K. Theophilou · The Journal of Chemical Physics · 14
Density matrices derived from polynomial approximations and other models
1986 · A. K. Theophilou, N. H. March · Physical Review A · 13
Spin-Hamiltonians by means of hierarchies of group-indexed algebras: (I) The hierarchy of algebras
1994 · A.K. Theophilou, S. Thanos · Physica B Condensed Matter · 11
The Statistical Distribution Function For An Anyon Liquid
1993 · N. H. March, N. Gidopoulos, et al. · Physics and Chemistry of Liquids · 11
The New Formulation of the Density Functional Theory, the Limitation of Accuracy of the Kohn-Sham Potential and its Expression in Terms of the External Potential
2003 · Andreas K. Theophilou · Progress in theoretical chemistry and physics · 8
Some properties of the KS potential, concerning degenerate and nearly degenerate states
2000 · A.K. Theophilou, P. Papaconstantinou · Journal of Molecular Structure THEOCHEM · 8
Quantum-mechanical ground state of cerous magnesium nitrate
1983 · S. Thanos, A. K. Theophilou · Physical review. B, Condensed matter · 8
The ground state of crystals with dipole-dipole and exchange interactions in an external magnetic field
1973 · A.K. Theophilou · Physica · 8
Works count: 53
Citation count: 1,015
H-index: 16
I10-index: 21
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