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octopus: a first-principles tool for excited electron-ion dynamics

Authors: M.A.L. Marques, Alberto Castro, George F. Bertsch, and Angel Rubio

Ref.: Comput. Phys. Commun. 151, 60-78 (2003)

Abstract: We present a computer package aimed at the simulation of the electron-ion dynamics of finite systems, both in one and three dimensions, under the influence of time-dependent electromagnetic fields. The electronic degrees of freedom are treated quantum mechanically within the time-dependent Kohn-Sham formalism, while the ions are handled classically. All quantities are expanded in a regular mesh in real space, and the simulations are performed in real time. Although not optimized for that purpose, the program is also able to obtain static properties like ground-state geometries, or static polarizabilities. The method employed proved quite reliable and general, and has been successfully used to calculate linear and non-linear absorption spectra, harmonic spectra, laser induced fragmentation, etc. of a variety of systems, from small clusters to medium sized quantum dots.

Citations: 586 (Google scholar)

DOI: 10.1016/S0010-4655(02)00686-0

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Bibtex:

@article{Marques_2003,
	doi = {10.1016/s0010-4655(02)00686-0},
	url = {https://doi.org/10.1016%2Fs0010-4655%2802%2900686-0},
	year = 2003,
	month = {mar},
	publisher = {Elsevier {BV}},
	volume = {151},
	number = {1},
	pages = {60--78},
	author = {M Marques},
	title = {octopus: a first-principles tool for excited electron{\textendash}ion dynamics},
	journal = {Computer Physics Communications}
}