L
Ludwik Adamowicz
Researcher at University of Arizona
Publications - 655
Citations - 15206
Ludwik Adamowicz is an academic researcher from University of Arizona. The author has contributed to research in topics: Ab initio & Ab initio quantum chemistry methods. The author has an hindex of 57, co-authored 642 publications receiving 14509 citations. Previous affiliations of Ludwik Adamowicz include National Chung Cheng University & Florida State University College of Arts and Sciences.
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A state-selective multireference coupled-cluster theory employing the single-reference formalism
TL;DR: In this article, a new state-selective multireference coupled-cluster (CC) method exploiting the single-reference (SR) particlehole formalism is described, and the size extensivity of the resulting correlation energies is achieved by employing a SRCC-like ansatz for the multideterminantal wave function.
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Matrix-Isolation Infrared and Theoretical Studies of the Glycine Conformers
Stepan G. Stepanian,Igor Reva,E. D. Radchenko,Mário T. S. Rosado,M. L. T. S. Duarte,Rui Fausto,Ludwik Adamowicz +6 more
TL;DR: In this article, the IR spectra of nonionized glycine and its deuterated derivatives isolated in the low-temperature argon matrices have been measured, and for the first time the infrared spectral characteristics of the three most stable conformers have been determined and assigned.
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Multireference coupled‐cluster method using a single‐reference formalism
Nevin Oliphant,Ludwik Adamowicz +1 more
TL;DR: In this article, a multireference coupled-cluster singles and doubles method utilizing two reference determinants which differ by a two electron excitation is proposed, and one of these determinants is selected as the formal reference determinant.
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Theory and application of explicitly correlated Gaussians
Jim Mitroy,Sergiy Bubin,Wataru Horiuchi,Yasuyuki Suzuki,Ludwik Adamowicz,Wojciech Cencek,Krzysztof Szalewicz,Jacek Komasa,D Blume,Kalman Varga +9 more
TL;DR: The variational method complemented with the use of explicitly correlated Gaussian basis functions is one of the most powerful approaches currently used for calculating the properties of few-body systems as mentioned in this paper.
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Coupled‐cluster method truncated at quadruples
Nevin Oliphant,Ludwik Adamowicz +1 more
TL;DR: In this paper, the potential curves for the dissociation of a model system with a single bond (Li2 and LiH) are calculated using coupled-cluster equations including single, double, triple, and quadruple excitation amplitudes (CCSDTQ).