Teaching strategy for introducing beginners to Coherent States

A. Plastino, and M.C. Rocca

Abstract


Handling coherent states by undergraduates students may be
a hard task, as they have to deal with Glauber's series $e^{-\frac {|\alpha|^2} {2}}\sum\limits_{n=0}^\infty\frac {\alpha^n} {\sqrt{n!}}\phi_n(x)$. We show here that the task can be greatly simplified by introduction of a novel compact formula for Glauber coherent states employed in [ Int. J. Mod. Phys. B {\bf 31} (2017)
175051]. This expression is obtained by solving the basic
differential equation associated to coherent states $a|\alpha>=\alpha|\alpha>$.


Keywords


Coherent states, Defining equation, Compact form

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DOI: https://doi.org/10.31349/RevMexFisE.65.191

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Revista Mexicana de Física E

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