Louis de Broglie

Louis Victor Pierre Raymond, 7th Duc de Broglie was a French <a href="/facts/Theoretical_physicist/Cs2Y12rQ">theoretical physicist</a> and <a href="/facts/Aristocrat/Ij9GVxCE">aristocrat</a> known for his contributions to <a href="/facts/Old_quantum_theory/pXkHwvrh">quantum theory</a>. In his 1924 PhD thesis, he postulated the wave nature of <a href="/facts/Electron/L0KBo5cW">electrons</a> and suggested that <a href="/facts/Matter_wave/Rpszb8f1">all matter has wave properties</a>. This concept is known as the de Broglie hypothesis, an example of <a href="/facts/Wave-particle_duality/Au3UlcwQ">wave-particle duality</a>, and forms a central part of the theory of <a href="/facts/Quantum_mechanics/BRc3Mzgr">quantum mechanics</a>. De Broglie won the <a href="/facts/Nobel_Prize_in_Physics/o6w1nCbr">Nobel Prize in Physics</a> in 1929, after the wave-like behaviour of matter was <a href="/facts/Davisson%25E2%2580%2593Germer_experiment/7CfUxgFz">first experimentally demonstrated</a> in 1927.
The wave-like behaviour of particles discovered by de Broglie was used by <a href="/facts/Erwin_Schr%25C3%25B6dinger/wCprepF2">Erwin Schrödinger</a> in his formulation of <a href="/facts/Schr%25C3%25B6dinger_equation/3csgSIWF">wave mechanics</a>.: 270 
De Broglie's <a href="/facts/Pilot-wave/S6X3hBbK">pilot-wave</a> concept, was presented at the 1927 <a href="/facts/Solvay_Conference/XoNYFptp">Solvay Conferences</a> then abandoned, in favor of the <a href="/facts/Quantum_mechanics/BRc3Mzgr">quantum mechanics</a>, until 1952 when it was <a href="/facts/De_Broglie%25E2%2580%2593Bohm_theory/NysDBVeq">rediscovered and enhanced by David Bohm</a>.
Louis de Broglie was the sixteenth member elected to occupy <a href="/facts/List_of_members_of_the_Acad%25C3%25A9mie_fran%25C3%25A7aise/Qlc7W76J">seat 1</a> of the <a href="/facts/Acad%25C3%25A9mie_fran%25C3%25A7aise/Bo9SnIkY">Académie française</a> in 1944, and served as Perpetual Secretary of the <a href="/facts/French_Academy_of_Sciences/zF42DYQv">French Academy of Sciences</a>. 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 (<a href="/facts/CERN/y1gwRchm">CERN</a>). Among his publications were The Revolution in Physics and Matter and Light. He was honorary president of the French Association of Science Writers and received the inaugural <a href="/facts/Kalinga_Prize/xTA0rPcV">Kalinga Prize</a> from <a href="/facts/UNESCO/QSbkRv3o">UNESCO</a> for his efforts to popularize science.

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Louis de Broglie