Optimal control of the electronic current density: Application to one- and two-dimensional one-electron systems
Resumen: Quantum optimal control theory is a powerful tool for engineering quantum systems subject to external fields such as the ones created by intense lasers. The formulation relies on a suitable definition for a target functional, that translates the intended physical objective to a mathematical form. We propose the use of target functionals defined in terms of the one-particle density and its current. A strong motivation for this is the possibility of using time-dependent density-functional theory for the description of the system dynamics. We exemplify this idea by defining an objective functional that on one hand attempts a large overlap with a target density and on the other hand minimizes the current. The latter requirement leads to optimized states with increased stability, which we prove with a few examples of one- and two-dimensional one-electron systems.
Idioma: Inglés
DOI: 10.1103/PhysRevA.83.043413
Año: 2011
Publicado en: PHYSICAL REVIEW A 83, 4 (2011), 043413 [6 pp]
ISSN: 1050-2947

Factor impacto JCR: 2.878 (2011)
Categ. JCR: OPTICS rank: 10 / 78 = 0.128 (2011) - Q1 - T1
Categ. JCR: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL rank: 10 / 33 = 0.303 (2011) - Q2 - T1

Financiación: info:eu-repo/grantAgreement/ES/MICINN/FIS2009-13364-C02-01
Tipo y forma: Article (Published version)
Área (Departamento): Física de la Materia Condensada (Departamento de Física de la Materia Condensada)

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