• 837 Citations
  • 17 h-Index
19962019
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Research Output 1996 2019

  • 837 Citations
  • 17 h-Index
  • 59 Article
  • 2 Chapter
2003
5 Citations (Scopus)

Optimized quasiparticle energies in many-body perturbation theory

Surján, P., Köhalmi, D. & Szabados, A., Feb 1 2003, In : Collection of Czechoslovak Chemical Communications. 68, 2, p. 331-339 9 p.

Research output: Contribution to journalArticle

Hamiltonians
Electron correlations
Wave functions
Electrons
2002
10 Citations (Scopus)

Constant denominator perturbative schemes and the partitioning technique

Surján, P. & Szabados, A., Oct 5 2002, In : International Journal of Quantum Chemistry. 90, 1, p. 20-26 7 p.

Research output: Contribution to journalArticle

Hamiltonians
Wave functions
moments
expansion
energy
4 Citations (Scopus)

On the use of connected moments expansion with coupled cluster reference

Noga, J., Szabados, A. & Surján, P., May 2002, In : International Journal of Molecular Sciences. 3, 5, p. 508-521 14 p.

Research output: Contribution to journalArticle

Hamiltonians
moments
expansion
Wave functions
wave functions
2001
3 Citations (Scopus)

Near-degeneracy corrections for second-order perturbation theory: Comparison of two approaches

Szabados, A., Assfeld, X. & Surján, P., May 2001, In : Theoretical Chemistry Accounts. 105, 6, p. 408-412 5 p.

Research output: Contribution to journalArticle

perturbation theory
particle theory
perturbation
2000
36 Citations (Scopus)

Optimized partitioning in perturbation theory: Comparison to related approaches

Surján, P. & Szabados, A., Mar 8 2000, In : The Journal of Chemical Physics. 112, 10, p. 4438-4446 9 p.

Research output: Contribution to journalArticle

Electron correlations
Excited states
perturbation theory
Molecules
excitation
1999
6 Citations (Scopus)

Molecular Structure of 1,2,4,5-Tetracyanobenzene from Gas-Phase Electron Diffraction and Theoretical Calculations

Schultz, G., Szabados, A., Tarczay, G. & Zauer, K., 1999, In : Structural Chemistry. 10, 2, p. 149-155 7 p.

Research output: Contribution to journalArticle

Molecular Structure
Electron diffraction
Molecular structure
molecular structure
electron diffraction
29 Citations (Scopus)

Optimized partitioning in Rayleigh-Schrödinger perturbation theory

Szabados, Á. & Surján, P. R., Jul 23 1999, In : Chemical Physics Letters. 308, 3-4, p. 303-309 7 p.

Research output: Contribution to journalArticle

Hamiltonians
Electron correlations
Wave functions
perturbation theory
perturbation
1998
5 Citations (Scopus)
Electron correlations
Ionization potential
Excitation energy
orbitals
Geometry
11 Citations (Scopus)
Hamiltonians
Wave functions
Electron correlations
Ionization potential
Excitation energy
1997
3 Citations (Scopus)

Calculation of correlation-corrected band structures of polymers in the case of quasi-degeneracy

Surján, P., Szabados, A., Bogár, F. & Ladik, J., Sep 1997, In : Solid State Communications. 103, 11, p. 639-644 6 p.

Research output: Contribution to journalArticle

Band structure
Polymers
Damping
damping
polymers
1996
12 Citations (Scopus)

Damping of perturbation corrections in quasidegenerate situations

Surján, P. & Szabados, A., 1996, In : The Journal of Chemical Physics. 104, 9, p. 3320-3324 5 p.

Research output: Contribution to journalArticle

Poles
Damping
damping
perturbation
Molecules