P
Pierre-Nicholas Roy
Researcher at University of Waterloo
Publications - 118
Citations - 2738
Pierre-Nicholas Roy is an academic researcher from University of Waterloo. The author has contributed to research in topics: Monte Carlo method & Quantum Monte Carlo. The author has an hindex of 29, co-authored 104 publications receiving 2355 citations. Previous affiliations of Pierre-Nicholas Roy include Université de Montréal & University of Alberta.
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Journal ArticleDOI
The structure of Nb3O and Nb3O+ determined by pulsed field ionization–zero electron kinetic energy photoelectron spectroscopy and density functional theory
Dong-Sheng Yang,Marek Z. Zgierski,David M. Rayner,Peter A. Hackett,Ana Martínez,Dennis R. Salahub,Pierre-Nicholas Roy,Tucker Carrington +7 more
TL;DR: In this paper, the geometrical structures of triniobium monoxide, Nb3O, and its cation, NB3O+, have been determined by an experimental and theoretical study.
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A Feynman path centroid dynamics approach for the computation of time correlation functions involving nonlinear operators
TL;DR: In this paper, the centroid dynamics formalism is extended to the calculation of time correlation functions of nonlinear operators via higher order Kubo-type transforms and a general methodology is developed to relate these Kubo type transforms to the desired quantum correlation functions.
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Coupled Cation-Anion Dynamics Enhances Cation Mobility in Room-Temperature Superionic Solid-State Electrolytes.
TL;DR: The combined analysis described here resolves the role of the long debated paddle-wheel mechanism, and is the first direct evidence that anion rotation significantly enhances cation migration in rotor phases.
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Path integral ground state with a fourth-order propagator: application to condensed helium.
TL;DR: For this particular application, it is found that the fourth-order propagator performs comparably to the pair product approximation, and is far superior to the primitive approximation.
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Quantum Monte Carlo study of helium clusters doped with nitrous oxide: quantum solvation and rotational dynamics.
TL;DR: Dynamical and structural properties of small (4)He(N)-N(2)O complexes have been analyzed using ground-state and finite-temperature Monte Carlo simulations, highlighting the importance of exchange effects to explain the decoupling between a solvated dopant and the helium motion.