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Louis de broglie atomic theory3/29/2024 ![]() ![]() Thirty years ago, physics was divided into two camps. In a lecture de Broglie gave on the occasion when he received the Nobel Prize in 1929 he explained the background to the ideas contained in his doctoral thesis (see for example ):. It proposed the theory for which he is best known, namely the particle-wave duality theory that matter has the properties of both particles and waves. De Broglie's doctoral thesis Recherches sur la théorie des quanta Ⓣ ( Researches on the quantum theory ) of 1924 put forward this theory of electron waves, based on the work of Einstein and Planck. His brother Maurice de Broglie was at that time carrying out experimental work on X-rays and this proved a considerable interest to de Broglie during the first few years of the 1920s during which he worked for his doctorate. Taking up research in mathematical physics, de Broglie nevertheless maintained an interest in experimental physics. the mystery in which the structure of matter and of radiation was becoming more and more enveloped as the strange concept of the quantum, introduced by Planck in 1900 in his researches into black-body radiation, daily penetrated further into the whole of physics. ![]() He explained how he was attracted to mathematical physics after the War (see for example ):. During these war years all his spare time was spent thinking about technical problems. He was attached to the wireless telegraphy section for the whole of the war and served in the station at the Eiffel Tower. During the War de Broglie served in the army. In 1913 de Broglie was awarded his Licence ès Sciences but before his career had progressed much further World War I broke out. After being assigned a research topic in history he chose, after worrying greatly about the decision, to study for a degree in theoretical physics. At the age of 18 he graduated with an arts degree but he was already becoming interested in mathematics and physics. He entered the Sorbonne in Paris taking a course in history, intending to make for himself a career in the diplomatic service. At this stage he did not envisage a career in science, but was interested in taking literary studies at university. Louis studied at the Lycée Janson de Sailly in Paris completing his secondary school education in 1909. Biography Louis de Broglie's father was Victor, Duc de Broglie, and his mother was Pauline d'Armaillé. ![]()
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