The French theoretical physicist Louis Victor Pierre Raymond de Broglie (1892-1987) was awarded the Nobel Prize in Physics for his discovery of the wave nature of electrons. Louis Victor Pierre Raymond de Broglie, 7th duc de Broglie was a French physicist who made groundbreaking contributions to quantum theory. Prince Louis-Victor Pierre Raymond de Broglie is on Facebook. When he died in Louveciennes,[6] he was succeeded as duke by a distant cousin, Victor-François, 8th duc de Broglie. Louis Victor Pierre Raymond de Broglie was born on August 15, 1892, in Dieppe, France, to Duc Victor and Pauline d'Armaille Broglie. For a short biography of De Broglie see Nobel Lectures, Physics, 1922-1941 (1965), which also contains his Nobel Lecture of 1929. [25], While attempts at verifying the internal clock hypothesis and measuring clock frequency are so far not conclusive,[26] recent experimental data is at least compatible with de Broglie's conjecture.[27]. As the youngest child in the family, Louis grew up in relative loneliness, read a lot, was fond of history, especially political. In 1944 he was elected to the Académie Française. Louis, Due de Broglie, the French physicist born in Dieppe on 15 August 1892, made one of the greatest discoveries of the 20th century: The de Broglie–Bohm theory is today the only interpretation giving real status to matter-waves and representing the predictions of quantum theory. Their new results proved that an electron behaves not only as a particle of matter but also as a wave. In 1960 de Broglie succeeded his brother Maurice as the 7th Duc. Louis de Broglie was an eminent French physicist who predicted the wave nature of electrons and suggested that all matter has wave properties. People Projects Discussions Surnames AKA Louis Victor Pierre Raymond du Broglie. All Rights Reserved. [9], Louis de Broglie was the sixteenth member elected to occupy seat 1 of the Académie française in 1944, and served as Perpetual Secretary of the French Academy of Sciences. By 1911 Lord Rutherford had explained his concept of the atom, and in 1913 Niels Bohr incorporated Planck's ideas into the Rutherford atom. The father of the future physicist, Louis-Alphonse-Victor, 5th duc de Broglie, was married to Pauline d’Armaille, the granddaughter of the Napoleonic General Philippe Paul, comte de Ségur. At the start of his researches in the early 1920s, De Broglie realized that neither the quantum theory of light nor the corpuscular theory of electrons appeared to be satisfactory. h Up to this time the De Broglie wave could be determined only in the immediate vicinity of the trajectory. Up to his final work, he appeared to be the physicist who most sought that dimension of action which Max Planck, at the beginning of the 20th century, had shown to be the only universal unity (with his dimension of entropy). No one had then deliberately attempted such an experiment, as the technical difficulties were too great. [13], Studying the nature of X-ray radiation and discussing its properties with his brother Maurice, who considered these rays to be some kind of combination of waves and particles, contributed to Louis de Broglie's awareness of the need to build a theory linking particle and wave representations. In the army during World War I he was active in wireless telegraphy. Birthplace: Dieppe, France Location of death: Paris, France Cause of death: Natur. His 1924 thesis Recherches sur la théorie des quanta[16] (Research on the Theory of the Quanta) introduced his theory of electron waves. The French theoretical physicist Louis Victor Pierre Raymond de Broglie (1892-1987) was awarded the Nobel Prize in Physics for his discovery of the wave nature of electrons. Copyright © 2020 LoveToKnow. Less difficult works are Ondes et mouvements (1926), Matter and Light: The New Physics (1939), and New Perspectives in Physics (1962). On 12 October 1944, he was elected to the Académie Française, replacing mathematician Émile Picard. 15 August 1892-19 March 1987", Biographical Memoirs of Fellows of the Royal Society, English translation of his book on hidden thermodynamics by D. H. Delphenich, The Theory of measurement in wave mechanics, Newspaper clippings about Louis de Broglie, https://en.wikipedia.org/w/index.php?title=Louis_de_Broglie&oldid=999852106, International Academy of Quantum Molecular Science members, Members of the French Academy of Sciences, Officers of the French Academy of Sciences, Members of the Royal Swedish Academy of Sciences, Foreign associates of the National Academy of Sciences, Foreign Members of the USSR Academy of Sciences, Foreign Fellows of the Indian National Science Academy, Articles needing additional references from August 2019, All articles needing additional references, Articles needing additional references from June 2015, Articles with French-language sources (fr), Nobelprize template using Wikidata property P8024, Wikipedia articles with BIBSYS identifiers, Wikipedia articles with CANTIC identifiers, Wikipedia articles with CINII identifiers, Wikipedia articles with PLWABN identifiers, Wikipedia articles with SELIBR identifiers, Wikipedia articles with SNAC-ID identifiers, Wikipedia articles with SUDOC identifiers, Wikipedia articles with Trove identifiers, Wikipedia articles with WORLDCATID identifiers, Creative Commons Attribution-ShareAlike License. After early education in Paris he entered the Sorbonne, where, as he intended to become a civil servant, he read history and graduated in that subject in 1910. He won the 1929 Nobel Prize for Physics. Physics Curiosities, Oddities, and Novelties. He received honorary degrees from six universities. [10][11] De Broglie became the first high-level scientist to call for establishment of a multi-national laboratory, a proposal that led to the establishment of the European Organization for Nuclear Research (CERN). In 1905 Albert Einstein postulated that light must consist of wave packets, or minute corpuscles in rapid motion, later called photons. In 1925 and 1926, Leningrad physicist Orest Khvolson nominated the de Broglie brothers for the Nobel Prize for their work in the field of X-rays. But, as far as was then realized, there was no experimental confirmation of the theory. In his later career, de Broglie worked to develop a causal explanation of wave mechanics, in opposition to the wholly probabilistic models which dominate quantum mechanical theory; it was refined by David Bohm in the 1950s. De Broglie won the Nobel Prize for Physics in 1929, after the wave-like behaviour of matter was first experimentally demonstrated in 1927. The 1925 pilot-wave model,[7] and the wave-like behaviour of particles discovered by de Broglie was used by Erwin Schrödinger in his formulation of wave mechanics. Military service: French Army (WWI) French quantum physicist Louis de Broglie introduced his theory of particle-wave duality in 1924. This experimental confirmation was vital to the survival of his theoretical work. He soon modified this to his "pilot-wave theory." However, this generalization was statistical and was not approved of by de Broglie, who said "that the particle must be the seat of an internal periodic movement and that it must move in a wave in order to remain in phase with it was ignored by the actual physicists [who are] wrong to consider a wave propagation without localization of the particle, which was quite contrary to my original ideas.". 2 (1939). / Louis became the 7th duc de Broglie in 1960 upon the death without heir of his elder brother, Maurice, 6th duc de Broglie, also a physicist. Discovered the wave nature of electrons. A far-seeing man, De Broglie saw by the middle of World War II that stronger links between industry and science were becoming necessary. Early life. These experimental results were not confirmed until 1927, but after that year experimental evidence favoring De Broglie's views greatly increased. Select from premium Louis Victor Pierre Raymond De Broglie of the highest quality. After the war he did research on theoretical physics at the Sorbonne, and in 1924 he was awarded his doctorate in science with a thesis on the quantum theory which already contained the basis of all his future work. Join Facebook to connect with Prince Louis-Victor Pierre Raymond de Broglie and others you may know. Louis berasal dari keluarga Prancis yang dikenal memiliki diplomasi dan kemiliteran yang baik. For this he won the Nobel Prize in Physics in 1929. Prince Louis-Victor Pierre Raymond de Broglie The Nobel Prize in Physics 1929 Born: 15 August 1892, Dieppe, France Died: 19 March 1987, Paris, France Affiliation at the time of the award: Sorbonne University, Institut Henri Poincaré, Paris, France Louis de Broglie remained in military service throughout the First World War, dealing with purely technical issues. Louis de Broglie's father was Victor, Duc de Broglie, and his mother was Pauline d'Armaillé.Louis studied at the Lyceé Janson de Sailly in Paris completing his secondary school education in 1909. This concept is known as the de Broglie hypothesis, an example of wave–particle duality, and forms a central part of the theory of quantum mechanics. But in 1925 Clinton J. Davisson and L. H. Germer had an accident while bombarding a sheet of nickel with electrons. [21] Another result was the elucidation of the insufficiency of the Sommerfeld formula for determining the position of lines in X-ray spectra; this discrepancy was eliminated after the discovery of the electron spin. But in 1954 he developed his original theory, which now envisaged the particle as constantly jumping from one trajectory to another. UNESCO awarded him the first Kalinga Prize in 1952 for his work in popularizing scientific knowledge, and he was elected a Foreign Member of the Royal Society on 23 April 1953. {\displaystyle c^{2}/v} This wavefunction gives an appearance of wave behavior to matter, without making real physical waves appear. These: Wellenlänge= Planck-konstatnte/Impuls Louis-Victor Pierre Raymond de It began at Fort Mont Valérien, but soon, on the initiative of his brother, he was seconded to the Wireless Communications Service and worked on the Eiffel Tower, where the radio transmitter was located. He was asked to join Le Conseil de l'Union Catholique des Scientifiques Francais, but declined because he was non-religious. He established a center for applied mechanics at the Henri Poincaré Institute, where research into optics, cybernetics, and atomic energy were carried out. In particular, together with Leon Brillouin and brother Maurice, he participated in establishing wireless communications with submarines. [14] The studies of X-ray spectra were important for elucidating the structure of the internal electron shells of atoms (optical spectra are determined by the outer shells). Louis Victor Pierre Raymond de Broglie was born in Dieppe on Aug. 15, 1892. This page was last edited on 12 January 2021, at 07:51. Prince Louis-Victor Pierre Raymond de Broglie (1892-1987) French physicist best known for his research on quantum theory and for his discovery of the wave nature of electrons. In this case, light quanta were interpreted by him as relativistic particles of very small mass. He then studied the physical sciences at the Sorbonne and graduated in them in 1913. Genealogy for Raymond Charles Amedee de Broglie (1826 - 1914) family tree on Geni, with over 200 million profiles of ancestors and living relatives. / In this work, action becomes a sort of opposite to entropy, through an equation that relates the only two universal dimensions of the form: As a consequence of its great impact, this theory brings back the uncertainty principle to distances around extrema of action, distances corresponding to reductions in entropy. Louis Victor Pierre Raymond de Broglie, 7th duc de Broglie was a French physicist and aristocrat who made groundbreaking contributions to quantum theory. But, with my actual ideas, it's Dynamics that appear to be a simplified branch of Thermodynamics. That idea seems to match the continuous–discontinuous duality, since its dynamics could be the limit of its thermodynamics when transitions to continuous limits are postulated. It was supported by Einstein, confirmed by the electron diffraction experiments of G P Thomson and Davisson and Germer, and generalized by the work of Schrödinger. As a result, these waves combine at regular intervals along the direction of propagation to form a wave crest. I think that, of all the ideas that I've introduced in quantum theory in these past years, it's that idea that is, by far, the most important and the most profound. In his first article on this subject, published in 1922, a French scientist considered blackbody radiation as a gas of light quanta and, using classical statistical mechanics, derived the Wien radiation law in the framework of such a representation. At this stage he did not envisage a career in science, but was interested in taking literary studies at university. This theory set the basis of wave mechanics. [12], Louis de Broglie belonged to the famous aristocratic family of Broglie, whose representatives for several centuries occupied important military and political posts in France. The first works of Louis de Broglie (early 1920s) were performed in the laboratory of his older brother Maurice and dealt with the features of the photoelectric effect and the properties of x-rays. Louis-Victor-Pierre-Raymond, al 7-lea duce de Broglie (n. 15 august 1892, Dieppe, Franța – d. 19 martie 1987, Louveciennes[*] , Franța) a fost un fizician francez, laureat al Premiului Nobel pentru descoperirea unui anumit tip de unde (vezi Dualismul corpuscul-undă). https://www.nobelprize.org/prizes/physics/1929/broglie/biographical Raymond Broglie is on Facebook. The wavelength determines the character of the wave, and the moving particle is characterized by its momentum, that is, its mass multiplied by its velocity (my). , where E Find the perfect Louis Victor Pierre Raymond De Broglie stock photos and editorial news pictures from Getty Images. Louis-Victor-Pierre-Raymond, duc de Broglie (banyak dikenal sebagai Louis de Broglie; lahir di Dieppe, Seine-Maritime, Prancis, 15 Agustus 1892 – meninggal di Louveciennes, Prancis, 19 Maret 1987 pada umur 94 tahun) ialah fisikawan Prancis dan pemenang Hadiah Nobel. Louis de Broglie (In full:Louis-Victor-Pierre-Raymond, 7th duc de Broglie) was an eminent French physicist. De Broglie thus created a new field in physics, the mécanique ondulatoire, or wave mechanics, uniting the physics of energy (wave) and matter (particle).