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Michel Gaudin (physicist)
Michel Gaudin (born 2 December 1931) is a French physicist, known for the Gaudin model, in which a central spin is coupled to many surrounding spins. After graduating with the degree of ''ingénieur des ponts et chaussées'' (civil engineer), Gaudin joined in 1956 the CEA in Saclay to work on neutron experiments. Two years later, he joined Claude Bloch's theorists' working group, to which he belonged for the rest of his career. In 1967 he received from the University of Paris-Sud in Orsay his doctoral degree in physics with thesis ''Étude d'un modèle à une dimension pour un système de fermions en interaction''. Gaudin's research deals with, among other topics, the quantum-mechanical description of many-body systems, in particular, spin systems. With M. L. Mehta in 1960 he published ''On the density of eigenvalues of a random matrix'', an important paper on random matrices. Gaudin received the Fondation Saintour Prize, awarded every two years since 1889 by the Collège de Fra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaudin Model
In physics, the Gaudin model, sometimes known as the ''quantum'' Gaudin model, is a model, or a large class of models, in statistical mechanics first described in its simplest case by Michel Gaudin. They are exactly solvable models, and are also examples of quantum spin chains. History The simplest case was first described by Michel Gaudin in 1976, with the associated Lie algebra taken to be \mathfrak_2, the two-dimensional special linear group. Mathematical formulation Let \mathfrak be a semi-simple Lie algebra of finite dimension d. Let N be a positive integer. On the complex plane \mathbb, choose N different points, z_i. Denote by V_\lambda the finite-dimensional irreducible representation of \mathfrak corresponding to the dominant integral element \lambda. Let (\boldsymbol) := (\lambda_1, \cdots, \lambda_N) be a set of dominant integral weights of \mathfrak. Define the tensor product V_:=V_\otimes \cdots \otimes V_. The model is then specified by a set of operators ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commissariat à L'énergie Atomique
The French Alternative Energies and Atomic Energy Commission or CEA ( French: Commissariat à l'énergie atomique et aux énergies alternatives), is a French public government-funded research organisation in the areas of energy, defense and security, information technologies and health technologies. The CEA maintains a cross-disciplinary culture of engineers and researchers, building on the synergies between fundamental and technological research. CEA is headed by a board headed by the general administrator (currently François Jacq since 20 April 2018), advised by the high-commissioner for atomic energy (currently Patrick Landais). Its yearly budget amounts to €5.1 billion and its permanent staff is slightly over 20,500 persons. It owned Areva. CEA was created in 1945; since then, the successive high-commissioners have been Frédéric Joliot-Curie, Francis Perrin, Jacques Yvon, Jean Teillac, Raoul Dautry, René Pellat, Bernard Bigot, Daniel Verwaerde and François Jacq. It c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saclay
Saclay () is a commune in the southwestern suburbs of Paris, France. It is located from the centre of Paris. It had a population of 3,067 in 2006. It is best known for the large scientific facility CEA Saclay, mostly dealing with nuclear and particle physics. Inhabitants of Saclay are known as Saclaysiens. Transport Saclay is served by no station of the Paris Métro ( RER), or suburban rail network. The closest station to Saclay is Le Guichet station on Paris RER line B. This station is located in the neighboring commune of Orsay, to the south of the town center of Saclay. See also *Communes of the Essonne department *Plateau de Saclay The Plateau de Saclay, also called Silicon Valley Européenne (in English, European Silicon Valley), is located north of Essonne and south-east of Yvelines, 20 km south of Paris. It is bounded by the valley of the Yvette ('' Vallée de Chevreu ... References External links *Official websiteCommunity blog *Mayors of Essonne Association ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claude Bloch
Claude Bloch (18 March 1923 – 29 December 1971) was a French theoretical nuclear physicist. He authored over 60 published articles and made significant impact on the fields of quantum field theory, nuclear physics, and the many-body problem. Bloch was born on 18 March 1923 in Paris, France. He was admitted to the École Polytechnique in 1942 and graduated first in his class. He entered the Corps des Mines in 1946. He studied at the Bohr Institute in Copenhagen from 1948-1951 where he worked on the problems in the non-local theory of quantum fields. He worked at the California Institute of Technology in 1952-1953 where he worked on the statistical theory of the nucleus. Upon returning to France in 1953, he joined the Commissariat à l'Energie Atomique A commissariat is a department or organization commanded by a commissary or by a corps of commissaries. In many countries, commissary is a police rank. In those countries, a commissariat is a police station commanded by a comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Paris-Sud
Paris-Sud University (French: ''Université Paris-Sud''), also known as University of Paris — XI (or as Université d'Orsay before 1971), was a French research university distributed among several campuses in the southern suburbs of Paris, including Orsay, Cachan, Châtenay-Malabry, Sceaux, and Kremlin-Bicêtre campuses. The main campus was located in Orsay. Starting from 2020, University Paris Sud has been replaced by the University of Paris-Saclay in The League of European Research Universities (LERU). Paris-Sud was one of the largest and most prestigious universities in France, particularly in science and mathematics. The university was ranked 1st in France, 9th in Europe and 37th worldwide by 2019 Academic Ranking of World Universities (ARWU) in particular it was ranked as 1st in Europe for physics and 2nd in Europe for mathematics. Five Fields Medalists and two Nobel Prize Winners have been affiliated to the university. On 16 January 2019, Alain Sarfati was electe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madan Lal Mehta
Madan Lal Mehta (1932–2006) was a theoretical physicist of Indian origin, particularly known for his work in random matrix theory. Biography Madan Lal Mehta was born on 24 December 1932 in Relmagra, Rajasthan, a small village near Udaipur in northwest India. He obtained his Master of Science in Mathematics from the University of Rajasthan (Jaipur) in 1956. After two years at the Tata Institute of Fundamental Research in Bombay, he went to France in November 1958 to join the Department of Mathematical Physics (now the Department of Theoretical Physics) at Centre d'Etudes Nucléaires de Saclay. In 1961, he received his PhD under Claude Bloch working on materials at low density. From 1962 to 1963, he worked at the Institute for Advanced Study in Princeton (USA). He then returned to India, working at Delhi University, before returning to the United States from 1966–1967 to work at Princeton University and Argonne National Laboratory. Later, Mehta moved to the Department of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random Matrix
In probability theory and mathematical physics, a random matrix is a matrix-valued random variable—that is, a matrix in which some or all elements are random variables. Many important properties of physical systems can be represented mathematically as matrix problems. For example, the thermal conductivity of a lattice can be computed from the dynamical matrix of the particle-particle interactions within the lattice. Applications Physics In nuclear physics, random matrices were introduced by Eugene Wigner to model the nuclei of heavy atoms. Wigner postulated that the spacings between the lines in the spectrum of a heavy atom nucleus should resemble the spacings between the eigenvalues of a random matrix, and should depend only on the symmetry class of the underlying evolution. In solid-state physics, random matrices model the behaviour of large disordered Hamiltonians in the mean-field approximation. In quantum chaos, the Bohigas–Giannoni–Schmit (BGS) conjecture asserts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collège De France
The Collège de France (), formerly known as the ''Collège Royal'' or as the ''Collège impérial'' founded in 1530 by François I, is a higher education and research establishment (''grand établissement'') in France. It is located in Paris near La Sorbonne. The Collège de France is considered to be France's most prestigious research establishment. Research and teaching are closely linked at the Collège de France, whose ambition is to teach "the knowledge that is being built up in all fields of literature, science and the arts". It offers high-level courses that are free, non-degree-granting and open to all without condition or registration. This gives it a special place in the French intellectual landscape. Overview The Collège is considered to be France's most prestigious research establishment. As of 2021, 21 Nobel Prize winners and 9 Fields Medalists have been affiliated with the Collège. It does not grant degrees. Each professor is required to give lectures where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dannie Heineman Prize For Mathematical Physics
Dannie Heineman Prize for Mathematical Physics is an award given each year since 1959 jointly by the American Physical Society and American Institute of Physics. It is established by the Heineman Foundation in honour of Dannie Heineman. As of 2010, the prize consists of US$10,000 and a certificate citing the contributions made by the recipient plus travel expenses to attend the meeting at which the prize is bestowed. Past Recipients Source: American Physical Society *2022 Antti Kupiainen and Krzysztof Gawędzki *2021 Joel Lebowitz *2020 Svetlana Jitomirskaya *2019 T. Bill Sutherland, Francesco Calogero and Michel Gaudin *2018 Barry Simon *2017 Carl M. Bender *2016 Andrew Strominger and Cumrun Vafa *2015 Pierre Ramond *2014 Gregory W. Moore *2013 Michio Jimbo and Tetsuji Miwa *2012 Giovanni Jona-Lasinio *2011 Herbert Spohn *2010 Michael Aizenman *2009 Carlo Becchi, , Raymond Stora and Igor Tyutin *2008 Mitchell Feigenbaum *2007 Juan Maldacena and Joseph Polchinski *2006 Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Physical Society
The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of knowledge of physics. The society publishes more than a dozen scientific journals, including the prestigious '' Physical Review'' and ''Physical Review Letters'', and organizes more than twenty science meetings each year. APS is a member society of the American Institute of Physics. Since January 2021 the organization has been led by chief executive officer Jonathan Bagger. History The American Physical Society was founded on May 20, 1899, when thirty-six physicists gathered at Columbia University for that purpose. They proclaimed the mission of the new Society to be "to advance and diffuse the knowledge of physics", and in one way or another the APS has been at that task ever since. In the early years, virtually the sole activity of the AP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Physicists
French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ** French cuisine, cooking traditions and practices Fortnite French places Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), 2008 * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a particular type of military jacket or tunic used in the Russian Empire and Soviet Union * French's, an American brand of mustard condiment * French catheter scale, a unit of measurement of diameter * French Defence, a chess opening * French kiss, a type of kiss involving the tongue See also * France (other) * Franch, a surname * Frenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
