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Real-space grids and the Octopus code as tools for the development of new simulation approaches for electronic systems

Authors: X. Andrade, D. Strubbe, U. De Giovannini, A. Hjorth Larsen, M.J.T. Oliveira, J. Alberdi-Rodriguez, A. Varas, I. Theophilou, N. Helbig, M. Verstraete, L. Stella, F. Nogueira, A. Aspuru-Guzik, A. Castro, M.A.L. Marques, and A. Rubio

Ref.: Phys. Chem. Chem. Phys. 17, 31371-31396 (2015)

Abstract: Real-space grids are a powerful alternative for the simulation of electronic systems. One of the main advantages of the approach is the flexibility and simplicity of working directly in real space where the different fields are discretized on a grid, combined with competitive numerical performance and great potential for parallelization. These properties constitute a great advantage at the time of implementing and testing new physical models. Based on our experience with the Octopus code, in this article we discuss how the real-space approach has allowed for the recent development of new ideas for the simulation of electronic systems. Among these applications are approaches to calculate response properties, modeling of photoemission, optimal control of quantum systems, simulation of plasmonic systems, and the exact solution of the Schrodinger equation for low-dimensionality systems.

Citations: 270 (Google scholar)

DOI: 10.1039/c5cp00351b

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Bibtex:

@article{Andrade_2015,
	doi = {10.1039/c5cp00351b},
	url = {https://doi.org/10.1039%2Fc5cp00351b},
	year = 2015,
	publisher = {Royal Society of Chemistry ({RSC})},
	volume = {17},
	number = {47},
	pages = {31371--31396},
	author = {Xavier Andrade and David Strubbe and Umberto De Giovannini and Ask Hjorth Larsen and Micael J. T. Oliveira and Joseba Alberdi-Rodriguez and Alejandro Varas and Iris Theophilou and Nicole Helbig and Matthieu J. Verstraete and Lorenzo Stella and Fernando Nogueira and Al{\'{a}}n Aspuru-Guzik and Alberto Castro and Miguel A. L. Marques and Angel Rubio},
	title = {Real-space grids and the Octopus code as tools for the development of new simulation approaches for electronic systems},
	journal = {Physical Chemistry Chemical Physics}
}