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Jean-Michel Raimond
Jean-Michel Raimond (born in Orléans) is a French physicist working in the field of quantum mechanics. Biography Raimond enrolled at the École normale supérieure (rue d'Ulm) (ENS) in 1975. After graduating with a DEA in atomic and molecular physics, his first research work was in superradiance and Rydberg atoms. He became Research Associate and Research Fellow at the Centre national de la recherche scientifique (CNRS), working under Serge Haroche towards his 1984 thesis ("Radiative properties of Rydberg atoms in a resonant cavity"). Since 1988, he has taught at the Université Pierre-et-Marie-Curie. From 1994 to 1999, he was a junior member of the Institut universitaire de France. From 2001 to 2011, he was a senior member and held the chair of quantum optics. From 2004 to 2009, he was head of the Department of Physics at the École normale supérieure (rue d'Ulm). Raimond specialised in atomic physics and quantum optics as a member of the Kastler-Brossel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orléans
Orléans (;"Orleans" (US) and , ) is a city in north-central France, about 120 kilometres (74 miles) southwest of Paris. It is the prefecture of the department of and of the of . Orléans is located on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize
The Nobel Prizes ( ; sv, Nobelpriset ; no, Nobelprisen ) are five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to "those who, during the preceding year, have conferred the greatest benefit to humankind." Alfred Nobel was a Swedish chemist, engineer, and industrialist most famously known for the invention of dynamite. He died in 1896. In his will, he bequeathed all of his "remaining realisable assets" to be used to establish five prizes which became known as "Nobel Prizes." Nobel Prizes were first awarded in 1901. Nobel Prizes are awarded in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace (Nobel characterized the Peace Prize as "to the person who has done the most or best to advance fellowship among nations, the abolition or reduction of standing armies, and the establishment and promotion of peace congresses"). In 1968, Sveriges Riksbank (Sweden's central bank) funded the establishment of the Prize in Econom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Paris
The University of Paris (french: link=no, Université de Paris), Metonymy, metonymically known as the Sorbonne (), was the leading university in Paris, France, active from 1150 to 1970, with the exception between 1793 and 1806 under the French Revolution. Emerging around 1150 as a corporation associated with the cathedral school of Notre Dame de Paris, it was considered the List of medieval universities, second-oldest university in Europe.Charles Homer Haskins, Haskins, C. H.: ''The Rise of Universities'', Henry Holt and Company, 1923, p. 292. Officially chartered in 1200 by King Philip II of France and recognised in 1215 by Pope Innocent III, it was later often nicknamed after its theological College of Sorbonne, in turn founded by Robert de Sorbon and chartered by List of French monarchs, French King Louis IX, Saint Louis around 1257. Internationally highly reputed for its academic performance in the humanities ever since the Middle Ages – notably in theology and philosophy – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Literature
French literature () generally speaking, is literature written in the French language, particularly by citizens of France; it may also refer to literature written by people living in France who speak traditional languages of France other than French. Literature written in the French language, by citizens of other nations such as Belgium, Switzerland, Canada, Senegal, Tunisia, Algeria, Morocco, etc. is referred to as Francophone literature. France itself ranks first on the list of Nobel Prize in Literature, Nobel Prizes in literature by country. For centuries, French literature has been an object of national pride for French people, and it has been one of the most influential components of the literature of Europe. One of the first known examples of French literature is the The Song of Roland, Song of Roland, the first major work in a series of poems known as, "Chanson de geste, chansons de geste". The French language is a Romance languages, Romance language derived from Latin a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michel Raimond
Michel may refer to: * Michel (name), a given name or surname of French origin (and list of people with the name) * MĂchel (nickname), a nickname (a list of people with the nickname, mainly Spanish footballers) * MĂchel (footballer, born 1963), Spanish former footballer and manager * ''Michel'' (TV series), a Korean animated series * German auxiliary cruiser ''Michel'' * Michel catalog, a German-language stamp catalog * St. Michael's Church, Hamburg or Michel * S:t Michel, a Finnish town in Southern Savonia, Finland People * Alain Michel (other), several people * Ambroise Michel (born 1982), French actor, director and writer. * AndrĂ© Michel (director), French film director and screenwriter * AndrĂ© Michel (lawyer), human rights and anti-corruption lawyer and opposition leader in Haiti * Anette Michel (born 1971), Mexican actress * Anneliese Michel (1952 - 1976), German Catholic woman undergone exorcism * Annett Wagner-Michel (born 1955), German Woman Internationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Feedback
Quantum feedback or quantum feedback control is a class of methods to prepare and manipulate a quantum system in which that system's quantum state or trajectory is used to evolve the system towards some desired outcome. Just as in the classical case, feedback occurs when outputs from the system are used as inputs that control the dynamics (e.g. by controlling the Hamiltonian of the system). The feedback signal is typically filtered or processed in a classical way, which is often described as measurement based feedback Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. In other words, measurement is a process of determining how large or small a physical quantity is as compared t .... However, quantum feedback also allows the possibility of maintaining the quantum coherence of the output as the signal is processed (via unitary evolution), which has no classical analogue. Measurement based feedbac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Measurement Problem
In quantum mechanics, the measurement problem is the problem of how, or whether, wave function collapse occurs. The inability to observe such a collapse directly has given rise to different interpretations of quantum mechanics and poses a key set of questions that each interpretation must answer. The wave function in quantum mechanics evolves deterministically according to the Schrödinger equation as a linear superposition of different states. However, actual measurements always find the physical system in a definite state. Any future evolution of the wave function is based on the state the system was discovered to be in when the measurement was made, meaning that the measurement "did something" to the system that is not obviously a consequence of Schrödinger evolution. The measurement problem is describing what that "something" is, how a superposition of many possible values becomes a single measured value. To express matters differently (paraphrasing Steven Weinberg), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Informatics
Informatics is the study of computational systems, especially those for data storage and retrieval. According to ACM ''Europe and'' ''Informatics Europe'', informatics is synonymous with computer science and computing as a profession, in which the central notion is transformation of information. In other countries, the term "informatics" is used with a different meaning in the context of library science. Different meanings In some countries, depending on local interpretations, the term "informatics" is used synonymously to mean information systems, information science, information theory, information engineering, information technology, information processing, or other theoretical or practical fields. In Germany, the term ''informatics'' almost exactly corresponds to modern computer science. Accordingly, universities in continental Europe usually translate "informatics" as computer science, or sometimes information and computer science, although technical universities may tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Logic
In the mathematical study of logic and the physical analysis of quantum foundations, quantum logic is a set of rules for manipulation of propositions inspired by the structure of quantum theory. The field takes as its starting point an observation of Garrett Birkhoff and John von Neumann, that the structure of experimental tests in classical mechanics forms a Boolean algebra, but the structure of experimental tests in quantum mechanics forms a much more complicated structure. Quantum logic has been proposed as the correct logic for propositional inference generally, most notably by the philosopher Hilary Putnam, at least at one point in his career. This thesis was an important ingredient in Putnam's 1968 paper "Is Logic Empirical?" in which he analysed the epistemological status of the rules of propositional logic. Modern philosophers reject quantum logic as a basis for reasoning, because it lacks a material conditional; a common alternative is the system of linear logi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Decoherence
Quantum decoherence is the loss of quantum coherence. In quantum mechanics, particles such as electrons are described by a wave function, a mathematical representation of the quantum state of a system; a probabilistic interpretation of the wave function is used to explain various quantum effects. As long as there exists a definite phase relation between different states, the system is said to be coherent. A definite phase relationship is necessary to perform quantum computing on quantum information encoded in quantum states. Coherence is preserved under the laws of quantum physics. If a quantum system were perfectly isolated, it would maintain coherence indefinitely, but it would be impossible to manipulate or investigate it. If it is not perfectly isolated, for example during a measurement, coherence is shared with the environment and appears to be lost with time; a process called quantum decoherence. As a result of this process, quantum behavior is apparently lost, just as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photon
A photon () is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are Massless particle, massless, so they always move at the speed of light, speed of light in vacuum, (or about ). The photon belongs to the class of bosons. As with other elementary particles, photons are best explained by quantum mechanics and exhibit wave–particle duality, their behavior featuring properties of both waves and particles. The modern photon concept originated during the first two decades of the 20th century with the work of Albert Einstein, who built upon the research of Max Planck. While trying to explain how matter and electromagnetic radiation could be in thermal equilibrium with one another, Planck proposed that the energy stored within a material object should be regarded as composed of an integer number of discrete, equal-sized parts. To explai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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