Polarizability and hyperpolarizability of Li⁺ calculated from the DC-Stark shift

Author: Themelis, S I.

Source: Canadian Journal of Physics, Volume 86, Number 2, February 2008 , pp. 409-412(4)

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Abstract:

We show how energy shifts induced by DC fields can be used to obtain the polarizability α and the hyperpolarizability γ of the Lithium cation efficiently. We employ a nonperturbative method to solve a complex eigenvalue matrix equation constructed in terms of two separately optimized function spaces, Q and P. The values obtained for α and γ are in excellent agreement with other elaborate theoretical calculations. PACS Nos.: 02.70.-c, 32.10.Dk, 32.60.+i, 42.65.An

Nous montrons que les déplacements en énergie induits par un champ DC peuvent être utilisés pour obtenir la polarisabilité α et l'hyperpolarisabilité γ du cation de lithium. Nous utilisons une méthode non perturbative pour résoudre l'équation matricielle complexe aux valeurs propres qui a été construite à partir de deux espaces fonctionnels optimisés séparément, Q et P. Les valeurs obtenues pour α et γ sont en excellent accord avec d'autres calculs théoriques plus élaborés.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2008-02-01

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