Alain aspect nobel prize

Alain Aspect, CNRS Research Director Emeritus at the Institut d'Optique Graduate School (Université Paris-Saclay - CNRS) and Professor at École Polytechnique, is co-recipient of the Nobel Prize in Physics 2022. This Nobel Prize rewards his discoveries and underlines the excellence of education in Physics at l'X. The Nobel Prize in Physics 2022 has been awarded to Frenchman Alain Aspect, American John F. Clauser and Austrian Anton Zeilinger, announced the Royal Swedish Academy of Sciences. The trio is rewarded for their discoveries on quantum entanglement, a mechanism where two quantum particles are perfectly correlated, regardless of the distance that separates them, explained the Nobel jury. The discovery of this amazing property has opened the way to new technologies in quantum computing and ultra-secure communications, or ultra-sensitive quantum sensors that would allow extremely precise measurements, such as gravity in space. Born in 1947, Alain Aspect is an alumnus of École Normale Supérieure (ENS) Cachan and the Université Paris-Saclay. He has held positions at the Institute of Optics, ENS Yaoundé (Cameroon), ENS Cachan, ENS/Collège de France, and CNRS. He is a professor (Augustin Fresnel Chair) at the Institut d'Optique Graduate School (Université Paris-Saclay), a professor at École Polytechnique (Institut Polytechnique de Paris), and Director of Research Emeritus at the CNRS. He is a member of several academies of science in France, the United States, Austria, Belg...

Secretary General of the Royal Swedish Academy of Sciences Hans Ellegren, centre, Eva Olsson, left and Thors Hans Hansson, members of the Nobel Committee for Physics announce the winner of the 2022 Nobel Prize in Physics, from left to right on the screen, Alain Aspect, John F. Clauser and Anton Zeilinger, during a press conference at the Royal Swedish Academy of Sciences, in Stockholm, Sweden, Tuesday, Oct. 4, 2022. Credit: Jonas Ekstromer /TT News Agency via AP Three scientists jointly won this year's Nobel Prize in physics Tuesday for proving that tiny particles could retain a connection with each other even when separated, a phenomenon once doubted but now being explored for potential real-world applications such as encrypting information. Frenchman Alain Aspect, American John F. Clauser and Austrian Anton Zeilinger were cited by the Royal Swedish Academy of Sciences for experiments proving the "totally crazy" field of quantum entanglements to be all too real. They demonstrated that unseen particles, such as photons, can be linked, or "entangled," with each other even when they are separated by large distances. It all goes back to a feature of the universe that even baffled Albert Einstein and connects matter and light in a tangled, chaotic way. Bits of information or matter that used to be next to each other even though they are now separated have a connection or relationship—something that can conceivably help encrypt information or even teleport. A Chinese satellite ...

Author • Robert Young Professor of Physics and Director of the Lancaster Quantum Technology Centre, Lancaster University Disclosure statement Robert Young does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment. Partners The 2022 Nobel prize in physics Alain Aspect from Université Paris-Saclay in France, John Clauser from J.F. Clauser & Associates in the US, and Anton Zeilinger from University of Vienna in Austria, will share the prize sum of 10 million Swedish kronor (US$915,000) “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science”. The world of quantum mechanics appears very odd indeed. In school, we are taught that we can use equations in physics to predict exactly how things will behave in the future – where a ball will go if we roll it down a hill, for example. Quantum mechanics is different from this. Rather than predicting individual outcomes, it tells us the probability of finding subatomic particles in particular places. A particle can actually be in several places at the same time, before “picking” one location at random when we measure it. Even the great Albert Einstein himself was unsettled by this – to the point where he was Some physicists, however, embraced the consequences of quantum mechanics. John Bell, a physicist from Northe...

Physics is the first award mentioned in Nobel’s will, a possible indication of the importance he accorded it. Through 2021, the Nobel Prize in Physics has been awarded 115 times to 219 Nobel Prize laureates. John Bardeen won the Prize twice - in 1956 and 1972. He's the only person to do so, meaning that a total of 218 individuals have been awarded the Nobel Prize in Physics. The The three laureates’ work has helped lead to new applications of the principles of quantum mechanics, including quantum computers, quantum networks and secure quantum encrypted communication. “It has become increasingly clear that a new kind of quantum technology is emerging. We can see that the laureates’ work with entangled states is of great importance, even beyond the fundamental questions about the interpretation of quantum mechanics,” says Anders Irbäck, Chair of the Nobel Committee for Physics. Alain Aspect was born in 1947 in Agen, France. He earned his PhD in 1983 from Paris-Sud University, Orsay, France. He serves as Professor at Université Paris-Saclay and École Polytechnique, Palaiseau, France. John F. Clauser was born in 1942 in Pasadena, California. His PhD is from Columbia University, earned in 1969. He is a research physicist with J.F. Clauser & Associates in Walnut Creek, California. From 1969 to 1996 he worked at Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, and the University of California, Berkeley. Anton Zeilinger was born 1945 in Ried im Innkre...

Alain Aspect, (born June 15, 1947, Aspect received a In quantum entanglement, two particles are in a single entangled state such that measuring a property of one particle instantly determines that same property in another particle. For example, two particles are in a state where one is In 1964 the Irish-born physicist John Stewart Bell devised mathematical relationships, Bell’s inequalities, that would be satisfied by a hidden variable theory in which measurement of one particle would not instantly determine the properties of the other particle. Clauser and American physicist Stuart Freedman made the first experimental tests of the Bell inequalities in 1972 and showed results in accordance with However, the Clauser-Freedman experiment did not test an assumption Bell made, which is that the measurement of a particle by one observer would not somehow affect the measurement of the other. For example, the Clauser-Freedman experiment used polarizers that were preset. What if the experimental setup somehow had selected only photons that did not behave in accordance with hidden variable theory? Aspect and his collaborators in the early 1980s performed a series of experiments designed to answer such questions. The most spectacular experiment, conducted with Jean Dalibard and Gérard Roger, was a modified version of the Clauser-Freedman experiment. A pair of photons with opposite S that—had Bell’s inequalities held—would have been between −1 and 0. They measured S = 0.101 ± 0.02, wh...

Buy or subscribe Three quantum physicists have won the 2022 Nobel Prize in Physics for their experiments with entangled photons, in which particles of light become inextricably linked. Such experiments have laid the foundations for an abundance of quantum technologies, including quantum computers and communications.