Einstein and experimental evidence in favour of the hypothesis of light quanta

Scientiae Studia 13 (1):73-96 (2015)
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Abstract

En la primera parte de este artículo, respondemos a los comentarios críticos de Michel Paty sobre nuestro trabajo "Einstein y el efecto Compton". Si bien nuestra intención no fue evaluar la respuesta de Einstein a la evidencia experimental de la hipótesis cuántica de la luz más allá del año 1923, en la segunda parte del artículo evaluamos dos importantes experimentos completados en 1924: los realizados por Bothe y Geiger en Alemania y los de Compton y Simon en los Estados Unidos. Discutimos por qué ambos experimentos proporcionaron pruebas adicionales que respaldaron los puntos de vista de Einstein sobre la teoría cuántica de la radiación. Sin embargo, afirmamos que aun después de conocer estos resultados, Einstein nunca expresó un juicio categórico sobre la realidad de los cuantos de luz tal como el que formuló De Broglie a principios de 1923, con el que comparamos el punto de vista de Einstein. In the first part of this paper we reply to Michel Paty's critical remarks on our paper "Einstein and the Compton effect". We state that we did not evaluate Einstein's response to the experimental evidence about the light quantum hypothesis beyond 1923. Nevertheless, in the second part we analyze two important experiments completed in 1924: those performed by Bothe and Geiger in Germany and by Compton and Simon in the United States. We point out that both experiments provided additional evidence that supported Einstein's views about the quantum theory of radiation. Nonetheless, we contend that even after becoming aware of these results, Einstein never expressed a categorical judgment about the reality of light quanta, such as the one stated by De Broglie as early as 1923, with which we compared Einstein's position

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Hernán Pringe
Universidad Diego Portales

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Atoms, Entropy, Quanta: Einstein’s Miraculous Argument of 1905.John D. Norton - 2005 - Studies in History and Philosophy of Modern Physics 37 (1):71-100.
Einstein's introduction of photons: Argument by analogy or deduction from the phenomena?Jon Dorling - 1971 - British Journal for the Philosophy of Science 22 (1):1-8.

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