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. Originally, de Broglie thought that real wave i.
See Article History Alternative Titles: He was awarded the Nobel Prize for Physics. Early life De Broglie was the second son of a member of the French nobility.
From the Broglie familywhose name is taken from a small town in Normandyhave come high-ranking soldiers, politicians, and diplomats since the 17th century.
In choosing science as a profession, Louis de Broglie broke with family tradition, as had his brother Maurice from whom, after his death, Louis inherited the title of duke. Maurice, who was also a physicist and made notable contributions to the experimental study of the atomic nucleus, kept a well-equipped laboratory in the family mansion in Paris.
Louis occasionally joined his brother in his work, but it was the purely conceptual side of physics that attracted him. He began at 18 to study theoretical physics at the Sorbonne, but he was also earning his degree in historythus moving along the family path toward a career in the diplomatic service.
After a period of severe conflict, he declined the research project in French history that he had been assigned and chose for his doctoral thesis a subject in physics.
Theory of electron waves In this thesis de Broglie developed his revolutionary theory of electron waves, which he had published earlier in scientific journals.
See de Broglie wave. The notion that matter on the atomic scale might have the properties of a wave was rooted in a proposal Einstein had made 20 years before. Einstein had suggested that light of short wavelengths might under some conditions be observed to behave as if it were composed of particles, an idea that was confirmed in The dual nature of light, however, was just beginning to gain scientific acceptance when de Broglie extended the idea of such a duality to matter.
Experiments had indicated that the electron must move around a nucleus and that, for reasons then obscure, there are restrictions on its motion. A wave confined within boundaries imposed by the nuclear charge would be restricted in shape and, thus, in motion, because any wave shape that did not fit within the atomic boundaries would interfere with itself and be canceled out.
Inwhen de Broglie put forward this idea, there was no experimental evidence whatsoever that the electron, the corpuscular properties of which were well established by experiment, might under some conditions behave as if it were radiant energy.
He also acted, afteras an adviser to the French Atomic Energy Commissariat. The central question for him was whether the statistical considerations that are fundamental to atomic physics reflect an ignorance of underlying causes or whether they express all that there is to be known; the latter would be the case if, as some believe, the act of measuring affects, and is inseparable from, what is measured.De Broglie received the Nobel Prize for his theory (the first time it was ever awarded for a Ph.D.
thesis) and Davisson/Germer jointly won it in for the experimental discovery of electron diffraction (and thus the proving of de Broglie's hypothesis). Einstein’s postulate was confirmed experimentally by Robert Millikan and Arthur Compton over the next two decades.
The de Broglie hypothesis. Propagation of de Broglie waves in 1d – real part of the complex amplitude is blue, imaginary part is green.
De Broglie's thesis started from the hypothesis. Louis de Broglie: Louis de Broglie, French physicist best known for his research on quantum theory and for predicting the wave nature of electrons. He was awarded the Nobel Prize for Physics.
De Broglie was the second son of a member of the French nobility. but a copy of his doctoral thesis was sent to Einstein, whose response was. In , Louis de Broglie presented his research thesis, in which he proposed electrons have properties of both waves and particles, like light.
He rearranged the terms of the Plank-Einstein relation to apply to all types of matter. de Broglie suggested that particles can exhibit properties of waves.
Louis-Victor de Broglie () PARIS. A translation of: RECHERCHES SUR LA THE´ORIE DES QUANTA The interpretation of Einstein’s condition 28 Sommerfeld’s conditions on quasiperiodic motion 29 Chapter 4.
Motion quantisation with two charges 33 my thesis, but it was M. E. S. In the French physicist Louis de Broglie suggested that wave-particle duality is a feature common to light and all matter. In direct analogy to photons, de Broglie proposed that electrons with momentum p should exhibit wave properties with an associated wavelength λ = h / p.