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11 - Approximation methods

Published online by Cambridge University Press:  05 November 2014

Giampiero Esposito ,
Giuseppe Marmo ,
Gennaro Miele  and
George Sudarshan
Giampiero Esposito
Affiliation:
Università degli Studi di Napoli 'Federico II'
Giuseppe Marmo
Affiliation:
Università degli Studi di Napoli 'Federico II'
Gennaro Miele
Affiliation:
Università degli Studi di Napoli 'Federico II'
George Sudarshan
Affiliation:
University of Texas, Austin
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Summary

Since in both classical and quantum mechanics we are rarely dealing with explicitly solvable equations, this chapter is devoted to an elementary introduction to perturbation theory, Jeffreys–Wentzel–Kramers–Brillouin (hereafter JWKB) method and scattering theory, which are approximation methods that play a key role in all applications of quantum mechanics to atomic and nuclear physics.

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Advanced Concepts in Quantum Mechanics , pp. 234
Publisher: Cambridge University Press
Print publication year: 2014

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