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- Wojciech Cencek, Konrad Patkowski, Krzysztof Szalewicz
- The Journal of chemical physics
- 2009

The three-body nonadditive interaction energy between helium atoms was calculated at 253 trimer configurations using the full-configuration-interaction (FCI) method. The analytic potential fitted to… (More)

- Michal Przybytek, Wojciech Cencek, Justyna Komasa, Grzegorz E Łach, Bogumił Jeziorski, Krzysztof Szalewicz
- Physical review letters
- 2010

The helium pair potential was computed including relativistic and quantum electrodynamics contributions as well as improved accuracy adiabatic ones. Accurate asymptotic expansions were used for large… (More)

- Wojciech Cencek, Małgorzata Jeziorska, Omololu Akin-Ojo, Krzysztof Szalewicz
- The journal of physical chemistry. A
- 2007

Two nonadditive three-body analytic potentials for helium were obtained: one based on three-body symmetry-adapted perturbation theory (SAPT) and the other one on supermolecular coupled-cluster theory… (More)

- Wojciech Cencek, Michał Przybytek, Jacek Komasa, James B. Mehl, Bogumił Jeziorski, Krzysztof Szalewicz
- The Journal of chemical physics
- 2012

The adiabatic, relativistic, and quantum electrodynamics (QED) contributions to the pair potential of helium were computed, fitted separately, and applied, together with the nonrelativistic… (More)

- Wojciech Cencek, Jacek Komasa, Krzysztof Szalewicz
- The Journal of chemical physics
- 2011

Large expansions in basis sets of explicitly correlated Gaussian functions and the variation-perturbation technique were used to calculate the static dipole polarizability of the helium dimer at 16… (More)

- Wojciech Cencek
- 2004

A model two-processor heterogeneous computer consisting of one scalar and one vector processor is analyzed in terms of its performance. It is demonstrated that on mixed-type (scalar-vector)… (More)

- Rafał A Bachorz, Wojciech Cencek, Ralph Jaquet, Jacek Komasa
- The Journal of chemical physics
- 2009

The H(3)(+) potential energy surface is sampled at 5900 geometries with the emphasis on the nonequilibrium and asymptotic points. Apart from the Born-Oppenheimer energy converged to the accuracy… (More)

- Konrad Patkowski, Wojciech Cencek, Małgorzata Jeziorska, Bogumił Jeziorski, Krzysztof Szalewicz
- The journal of physical chemistry. A
- 2007

Nonrelativistic clamped-nuclei pair interaction energy for ground-state helium atoms has been computed for 12 interatomic separations ranging from 3.0 to 9.0 bohr. The calculations applied the… (More)

- Wojciech Cencek, Giovanni Garberoglio, Allan H. Harvey, Mark O McLinden, Krzysztof Szalewicz
- The journal of physical chemistry. A
- 2013

The three-body nonadditive interaction energy between argon atoms was calculated at 300 geometries using coupled cluster methods up to single, double, triple, and noniterative quadruple excitations… (More)

- Konrad Patkowski, Wojciech Cencek, +4 authors Allan H. Harvey
- The Journal of chemical physics
- 2008

Nonrelativistic clamped-nuclei energies of interaction between two ground-state hydrogen molecules with intramolecular distances fixed at their average value in the lowest rovibrational state have… (More)