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Double-perturbation theory and generalized secular equations

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Il Nuovo Cimento B (1971-1996)

Summary

Double-perturbation theory for nondegenerate systems is used to study, in a general framework, the perturbation of the Hamiltonian and metric matrices. The connections with previous singleperturbation treatments, interchange and Wigner theorems are discussed. Perturbation theory of secular equations can be viewed as a particular case of the present formalism.

Riassunto

Si usa la teoria della doppia perturbazione per sistemi non degeneri per studiare, in uno schema generale, la perturbazione delle matrioi hamiltoniane e metriche. Si discutono la connessione cou precedenti trattamenti di perturbazione singola, l’intercambio cd i teorcmi di Wigner. La tooria delle perturbazioni delle equazioni secolari può essere vista corne un caso particolare del presente formalismo.

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Carbó, E., Gallifa, R. Double-perturbation theory and generalized secular equations. Nuov Cim B 17, 46–52 (1973). https://doi.org/10.1007/BF02906425

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  • DOI: https://doi.org/10.1007/BF02906425

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