Progress and challenges in ab initio simulations of quantum nuclei in weakly 
bonded systems

Rossi, M.

doi:10.1063/5.0042572

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Progress and challenges in ab initio simulations of quantum nuclei in weakly bonded systems

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Rossi, M.
Simulations from Ab Initio Approaches, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

External Resource

https://arxiv.org/abs/2103.04206
(Preprint)

https://dx.doi.org/10.1063/5.0042572
(Publisher version)

https://dx.doi.org/10.1063/10.0004998
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Citation

Rossi, M. (2021). Progress and challenges in ab initio simulations of quantum nuclei in weakly bonded systems. The Journal of Chemical Physics, 154(17): 170902. doi:10.1063/5.0042572.

Cite as: https://hdl.handle.net/21.11116/0000-0008-2797-2

Abstract

Atomistic simulations based on the first-principles of quantum mechanics are reaching unprecedented length scales. This progress is due to the growth in computational power allied with the development of new methodologies that allow the treatment of electrons and nuclei as quantum particles. In the realm of materials science, where the quest for desirable emergent properties relies increasingly on soft weakly bonded materials, such methods have become indispensable. In this Perspective, an overview of simulation methods that are applicable for large system sizes and that can capture the quantum nature of electrons and nuclei in the adiabatic approximation is given. In addition, the remaining challenges are discussed, especially regarding the inclusion of nuclear quantum effects (NQEs) beyond a harmonic or perturbative treatment, the impact of NQEs on electronic properties of weakly bonded systems, and how different first-principles potential energy surfaces can change the impact of NQEs on the atomic structure and dynamics of weakly bonded systems.