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Cioslowski J. One-Electron Reduced Density Matrix Functional Theory of Spin-Polarized Systems. J Chem Theory Comput 2020; 16:1578-1585. [DOI: 10.1021/acs.jctc.9b01155] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jerzy Cioslowski
- Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
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Schilling C. Communication: Relating the pure and ensemble density matrix functional. J Chem Phys 2018; 149:231102. [DOI: 10.1063/1.5080088] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Christian Schilling
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
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Piris M. Dynamic electron-correlation energy in the natural-orbital-functional second-order-Møller-Plesset method from the orbital-invariant perturbation theory. PHYSICAL REVIEW A 2018; 98:022504. [DOI: 10.1103/physreva.98.022504] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Cioslowski J, Strasburger K. Five- and six-electron harmonium atoms: Highly accurate electronic properties and their application to benchmarking of approximate 1-matrix functionals. J Chem Phys 2018; 148:144107. [DOI: 10.1063/1.5021419] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Jerzy Cioslowski
- Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
| | - Krzysztof Strasburger
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Piris M, Pernal K. Comment on “Generalization of the Kohn-Sham system that can represent arbitrary one-electron density matrices”. PHYSICAL REVIEW A 2017; 96:046501. [DOI: 10.1103/physreva.96.046501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Cioslowski J, Piris M, Matito E. Robust validation of approximate 1-matrix functionals with few-electron harmonium atoms. J Chem Phys 2015; 143:214101. [DOI: 10.1063/1.4936583] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Jerzy Cioslowski
- Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
| | - Mario Piris
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), 20018 Donostia, Euskadi, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Euskadi, Spain
| | - Eduard Matito
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC), 20018 Donostia, Euskadi, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Euskadi, Spain
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Reduced Density Matrix Functional Theory (RDMFT) and Linear Response Time-Dependent RDMFT (TD-RDMFT). DENSITY-FUNCTIONAL METHODS FOR EXCITED STATES 2015; 368:125-83. [DOI: 10.1007/128_2015_624] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Ludeña EV, Torres FJ, Costa C. Functional <i>N</i>-Representability in 2-Matrix, 1-Matrix, and Density Functional Theories. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jmp.2013.43a055] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Piris M, Ugalde JM. Iterative diagonalization for orbital optimization in natural orbital functional theory. J Comput Chem 2009; 30:2078-86. [DOI: 10.1002/jcc.21225] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Piris M, Lopez X, Ugalde JM. Dispersion interactions within the Piris natural orbital functional theory: The helium dimer. J Chem Phys 2007; 126:214103. [PMID: 17567186 DOI: 10.1063/1.2743019] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The authors have investigated the description of the dispersion interaction within the Piris natural orbital functional (PNOF) theory. The PNOF arises from an explicit antisymmetric approach for the two-particle cumulant in terms of two symmetric matrices, Delta and Lambda. The functional forms of these matrices are obtained from the generalization of the two-particle system expressions, except for the off-diagonal elements of Delta. The mean value theorem and the partial sum rule obtained for the off-diagonal elements of Delta provide a prescription for deriving practical functionals. In particular, the previous employed approximation {Jpp/2} for the mean values {Jp*} affords several molecular properties but it is incapable to account for dispersion effects. In this work, the authors analyze a new approach for Jp* obtained by factorization of the matrix Delta within the bounds on its off-diagonal elements imposed by the positivity conditions of the two-particle reduced density matrix. Additional terms for the matrix elements of Lambda proportional to the square root of the holes are again introduced to describe properly the occupation numbers of the lowest occupied levels. The authors have found that the cross products between weakly occupied orbitals must be removed from the functional form of Lambda to obtain a correct long-range asymptotic behavior. The PNOF is used to predict the binding energy as well as the equilibrium distance of the helium dimer. The results are compared with the full configuration-interaction calculations and the corresponding experimental data.
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Affiliation(s)
- M Piris
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Euskadi, Spain
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Pernal K, Cioslowski J. Frequency-dependent response properties and excitation energies from one-electron density matrix functionals. Phys Chem Chem Phys 2007; 9:5956-65. [DOI: 10.1039/b704797e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Leiva P, Piris M. Calculation of vertical ionization potentials with the Piris natural orbital functional. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.theochem.2006.05.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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LEIVA PAVEL, PIRIS MARIO. A NATURAL ORBITAL FUNCTIONAL STUDY FOR THE ELECTRIC RESPONSE PROPERTIES OF MOLECULES. JOURNAL OF THEORETICAL AND COMPUTATIONAL CHEMISTRY 2005; 04:1165-1173. [DOI: 10.1142/s0219633605001969] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
This paper presents dipole moments, static isotropic polarizabilities and polarizability anisotropies of 20 molecules calculated in the framework of a new natural orbital functional method. All calculations have been performed using a finite field approach. Comparison with other correlated methods (CCSD(T), B3LYP) shows a reasonable agreement in the prediction of electric response properties by this new functional.
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Affiliation(s)
- PAVEL LEIVA
- Institute of Physical and Theoretical Chemistry, Friedrich-Alexander-University Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - MARIO PIRIS
- Institute of Physical and Theoretical Chemistry, Friedrich-Alexander-University Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen, Germany
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Pernal K. Effective potential for natural spin orbitals. PHYSICAL REVIEW LETTERS 2005; 94:233002. [PMID: 16090468 DOI: 10.1103/physrevlett.94.233002] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2005] [Indexed: 05/03/2023]
Abstract
For the first time the explicit form of the effective nonlocal potential for the natural spin orbitals is derived and analyzed. It is shown that in the case of the degenerate one-electron reduced density matrix the potential is not unique. The knowledge of the effective potential allows one to establish one-electron equations for the natural spin orbitals that may be of great value for efficient density matrix functional theory calculations.
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Affiliation(s)
- Katarzyna Pernal
- Section Theoretical Chemistry, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.
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Cioslowski J, Pernal K. Variational density matrix functional theory calculations with the lowest-order Yasuda functional. J Chem Phys 2002. [DOI: 10.1063/1.1481384] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cioslowski J, Pernal K. Density matrix functional theory of weak intermolecular interactions. J Chem Phys 2002. [DOI: 10.1063/1.1446028] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Cioslowski J, Pernal K. Response properties and stability conditions in density matrix functional theory. J Chem Phys 2001. [DOI: 10.1063/1.1383292] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lude�a EV, Karasiev V, L�pez-Boada R, Valderrama E, Maldonado J. Local-scaling transformation version of density functional theory: Application to atoms and diatomic molecules. J Comput Chem 1999. [DOI: 10.1002/(sici)1096-987x(19990115)20:1<155::aid-jcc14>3.0.co;2-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kryachko ES, Ludea EV. Formulation of N- and v-representable density-functional theory. I. Ground states. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:2179-2193. [PMID: 9905266 DOI: 10.1103/physreva.43.2179] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Ludeña EV, Keller J. Density Matrix Foundations of Density Functional Theory: the Importance of Pure-State N-Representability In the Derivation of Extended Kohn-Sham Equations. ADVANCES IN QUANTUM CHEMISTRY 1990. [DOI: 10.1016/s0065-3276(08)60591-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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