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Chemistry
Canada
2025

D-Index & Metrics

Chemistry

D-Index
80
Citations
21150
World Ranking
3451
National Ranking
84

Physics

D-Index
82
Citations
22388
World Ranking
2866
National Ranking
69

Research.com Recognitions

  • 2025 - Research.com Chemistry in Canada Leader Award
  • 2022 - Research.com Chemistry in Canada Leader Award
  • 2013 - Fellow of American Physical Society (APS) Citation For the development of theoretical and methodological aspects of atomic and molecular electronic structure, primarily of the unitary group and coupled cluster approaches to the manyelectron correlation problem, and their exploitation in computational quantum chemistry and chemical physics
  • 1983 - Fellow of the Royal Society of Canada Academy of Science

Overview

Josef Paldus is affiliated with the University of Waterloo in Canada, specializing in various domains of physics and chemistry. Their research spans multiple areas within Physics and Astronomy as well as Chemistry, encompassing several subfields and topics related to theoretical and computational approaches.

Their principal fields of study include:

  • Physics and Astronomy
  • Chemistry

Within these areas, Paldus's subfields of research cover:

  • Statistical and Nonlinear Physics
  • Nuclear and High Energy Physics
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

The main research topics they address consist of:

  • Quantum chaos and dynamical systems
  • Advanced NMR Techniques and Applications
  • Quantum Chromodynamics and Particle Interactions
  • Advanced Chemical Physics Studies
  • Magnetism in coordination complexes
  • Nuclear physics research studies
  • Rare-earth and actinide compounds

Josef Paldus has published extensively in the Journal of Mathematical Chemistry, contributing to several articles focused on the many-fermion correlation problem and methods in quantum chemistry. Recent papers include:

  • "Matrix elements of unitary group generators in many-fermion correlation problem. II. Graphical methods of spin algebras," 2020, Journal of Mathematical Chemistry
  • "Matrix elements of unitary group generators in many-fermion correlation problem. I. tensorial approaches," 2020, Journal of Mathematical Chemistry
  • "Matrix elements of unitary group generators in many-fermion correlation problem. III. Green-Gould approach," 2020, Journal of Mathematical Chemistry

In recognition of contributions to atomic and molecular electronic structure theory and computational quantum chemistry, Paldus was named a Fellow of the American Physical Society in 2013, highlighting work on the unitary group and coupled cluster methods applied to many-electron correlation problems. Earlier, in 1983, they were elected a Fellow of the Royal Society of Canada's Academy of Science.

Best Publications

  • Correlation Problems in Atomic and Molecular Systems. IV. Extended Coupled-Pair Many-Electron Theory and Its Application to the B H 3 Molecule

    J. Paldus;J. Čížek;I. Shavitt

  • Correlation problems in atomic and molecular systems III. Rederivation of the coupled-pair many-electron theory using the traditional quantum chemical methodst

    J. Čižek;J. Paldus

  • A CRITICAL ASSESSMENT OF COUPLED CLUSTER METHOD IN QUANTUM CHEMISTRY

    J. Paldus;Xiangzhu Li

  • Stability Conditions for the Solutions of the Hartree—Fock Equations for Atomic and Molecular Systems. Application to the Pi‐Electron Model of Cyclic Polyenes

    J. Čížek;J. Paldus

  • Group theoretical approach to the configuration interaction and perturbation theory calculations for atomic and molecular systems

    Josef Paldus

  • Time-Independent Diagrammatic Approach to Perturbation Theory of Fermion Systems

    J. Paldus;J. čížek

  • Applicability of coupled‐pair theories to quasidegenerate electronic states: A model study

    K. Jankowski;J. Paldus

  • Reduced multireference CCSD method: An effective approach to quasidegenerate states

    Xiangzhu Li;Josef Paldus

  • Spin‐adapted multireference coupled‐cluster approach: Linear approximation for two closed‐shell‐type reference configurations

    B. Jeziorski;J. Paldus

  • Correlation problems in atomic and molecular systems. V. Spin‐adapted coupled cluster many‐electron theory

    Josef Paldus

  • Application of Hilbert-space coupled-cluster theory to simple (H 2 ) 2 model systems. II. Nonplanar models

    Piotr Piecuch;Piotr Piecuch;Josef Paldus;Josef Paldus

  • Valence universal exponential ansatz and the cluster structure of multireference configuration interaction wave function

    Bogumil Jeziorski;Josef Paldus

  • Coupled Cluster Theory

    Josef Paldus

  • Approximate account of the connected quadruply excited clusters in the coupled-pair many-electron theory

    J. Paldus;J. Čížek;M. Takahashi

  • Reduced multireference couple cluster method. II. Application to potential energy surfaces of HF, F2, and H2O

    Xiangzhu Li;Josef Paldus

  • General-model-space state-universal coupled-cluster theory: Connectivity conditions and explicit equations

    Xiangzhu Li;Josef Paldus

  • Coupled Cluster Approach

    J Cizek;J Paldus

  • Automation of the implementation of spin‐adapted open‐shell coupled‐cluster theories relying on the unitary group formalism

    Xiangzhu Li;Josef Paldus

  • Stability Conditions for the Solutions of the Hartree–Fock Equations for Atomic and Molecular Systems. II. Simple Open‐Shell Case

    J. Paldus;J. Čĺžzek

  • Stability Conditions for the Solutions of the Hartree-Fock Equations for Atomic and Molecular Systems. VI. Singlet-Type Instabilities and Charge-Density-Wave Hartree-Fock Solutions for Cyclic Polyenes

    J. Paldus;J. ČiŽek

Frequent Co-Authors

Piotr Piecuch
Piotr Piecuch Michigan State University
Geerd H. F. Diercksen
Geerd H. F. Diercksen Max Planck Society
Mark D. Gould
Mark D. Gould University of Queensland
Paul E. S. Wormer
Paul E. S. Wormer Radboud University
Jiří Pittner
Jiří Pittner Czech Academy of Sciences
Evans M. Harrell
Evans M. Harrell Georgia Institute of Technology
Rodney J. Bartlett
Rodney J. Bartlett University of Florida
Wim Klopper
Wim Klopper Karlsruhe Institute of Technology
Werner Kutzelnigg
Werner Kutzelnigg Ruhr University Bochum
Vaclav Vitek
Vaclav Vitek University of Pennsylvania

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