DIRAC'S LINEARIZATION APPLIED TO THE FUNCTIONAL, WITH MATRIX ASPECT, FOR THE TIME OF FLIGHT OF LIGHT

Author:

BULNES Juan1,LÓPEZ-BONILLA José Luıs2

Affiliation:

1. UNIVERSIDADE FEDERAL DO AMAPÁ

2. ESIME-ZACATENCO, INSTITUTO POLITÉCNICO NACIONAL

Abstract

In this paper, we adopt a matrix treatment to solve the variational problem that consists of determining the physical path traveled by light between two points in a medium whose refractive index depends on a spatial coordinate. The considered treatment begins with the trivial repetition of the expression of the value of the considered functional, repetition expressed in the form of a matrix. Next, we adopt the trick (of Dirac) originally used as part of the construction of the dynamic equation of relativistic quantum mechanics, which allows us to rewrite the (now) matrix integrand in the expression of the value of the functional in terms of the sum of two (non-diagonal) matrices brought externally to the problem, which are determined based on some requirements. As a result of this development, we obtain two equivalent versions of Snell's law.

Publisher

Maltepe Journal of Mathematics

Subject

General Medicine

Reference10 articles.

1. O.D. Kichmarenko, L.I. Plotnikova, N.V. Skripnik, Variational Calculus (in Russian), Odessa, Astroprint (2009).

2. A.V. Panteleev, Calculus of Variations in examples and problems (in Russian), Ed. MAI (2000).

3. M.L. Krasnov, G.I. Makarenko, A.I. Kiseliov, Calculo Variacional (in Spanish), Ed. Mir-Moscu (1976).

4. J. Chaves, Introduction to Nonimaging Optics, second edition, Taylor & Francis Group (2016).

5. J. Garcia, Como llego Dirac a su ecuacion available on the internet, http://aula141.cat/wp-content/uploads/2015/10/Presentaci%C3%B3n_Dirac.pdf

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