Louis de BROGLIE (1892-1987), physicist and... - Lot 13 - Conan Belleville Hôtel d'Ainay

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Louis de BROGLIE (1892-1987), physicist and... - Lot 13 - Conan Belleville Hôtel d'Ainay
Louis de BROGLIE (1892-1987), physicist and mathematician, Nobel Prize in Physics (1929) for the discovery of the wave nature of electrons. Autograph manuscript (3 pp. in-4), accompanied by an autograph card signed (2 pp. in-12, 1954, for sending the manuscript). Envelope with the letterhead of the Academy of Sciences. Exceptional manuscript on the divisibility or non-divisibility of matter at infinity, based on his own theories, and those of HEISENBERG and EINSTEIN. This question, according to him, "does not present, in the current state of quantum physics a very clear meaning: it is, indeed, linked to the traditional idea according to which the matter and its elements can be represented by spatial images, but it is precisely this representation that the current interpretation of quantum physics rejects. In the formalisms that this interpretation substitutes for the images of classical physics, one comes to speak only of "numbers of corpuscles" while refusing to specify by an image what a corpuscle is. The formulas of the theory of the second quantization, and those of the quantum theory of the fields which constitutes a particular case, are constructed in such a way that they do not impose the constant of the number of particles of each species and that they can thus be applied to the case where there is appearance or disappearance of particle ". According to him, it becomes difficult to define an elementary corpuscle which would be the ultimate element of matter. He quotes Heisenberg on this subject and continues with his own theories on spin particles. "In the theory of spin particles which I have developed under the name of the "fusion method", it can be said that everything happens as if particles of spin different from ½ were formed of elementary corpuscles of spin ½; thus everything happens as if photons, particles of spin equal to 1, were formed of two constituents of spin ½. But, as this theory was constructed within the framework of the current interpretation of Wave Mechanics, one cannot say that it really provides a "picture" of particles of spin different from ½ conceived as an assembly of elementary corpuscles: this is why this theory is not in contradiction with the last sentence of the text of Heisenberg quoted above []. In the way of seeing that I have developed, a particle would be constituted by a singular region embedded in an extended wave phenomenon, the u-wave of the double solution theory. It is then the structure of the u-wave inside the singular region (where, by hypothesis, it would obey a non-linear equation) that would determine the structure and properties of the particle. The experimental fact that under certain conditions there was appearance, disappearance, fusion or dissociation of particles, should then be interpreted by the possibilities of modification or splitting of the singular regions. In other words, the granular structure of the u-field, equivalent to the existence of particles, would be susceptible to various forms in limited number corresponding to the various species of physical units, if one admits with Einstein that the theory of particles must be done with the help of a representation by continuous fields without the intervention of any mathematical singularity, the u-wave should not include such singularities even in the regions that I call "singular" where they possess only very high but not infinite values []".
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