Angel "Java" Lopez en Blog

Publicado el 2 de Agosto, 2016, 6:51

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Comentaba en el anterior post, la aparición de la interpretación probabilística de Born de la función de onda. Esta función tiene resultado complejo, y Born toma "el cuadrado" (multiplicar el complejo por su conjugado), para obtener el valor de densidad de probabilidad en un punto, e integrar por el espacio de coordenadas considerado. Pensé que la aceptación de su idea fue inmediate, pero leo:

To assert this was easy; but how could I prove this? For this purpose atomic scattering processes suggested themselves. A shower of electrons coming from an infinite distance, represented by a wave of known intensity (that is, Psi ^ 2) impinge on an obstacle say a heavy atom... In the same way that the water wave caused by a steamer excites secondary circular waves in striking a pile, the incident electron wave is partly transformed by the atom into a secondary spherical wave, whose amplitude of oscillations Psi is different in different directions. The square of the amplitude |psi| ^ 2 of this wave at a great distance from the scattering center then determines the relative probability of scattering in its dependence of direction... Soon Wentzel succeeded in deriving Rutherford's celebrated 1911 formula for the scattering of a-particles from my theory.

But the factor that contributed more than these successes to the speed of acceptance of my statistical interpretation of the Psi-function was a 1927 paper by Heisenberg that contained his celebrated uncertainty relationship, through which the revolutionary character of the new conception was first made clear.

Vean que las relaciones de incertidumbre recién aparecen en 1927. No sabía que en el mismo "paper" Heisenberg daba soporte a la interpretación de Born.

Aca termina mi comentario del texto de Born, de su fascinante libro "Physics in my Generation", Springer, citado el "Quantum Field Theory, I", de Eberhard Zeidler.

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Angel "Java" Lopez
http://www.ajlopez.com
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Por ajlopez, en: General