[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki9\/ericson-fluctuations-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki9\/ericson-fluctuations-wikipedia\/","headline":"Ericson fluctuations – Wikipedia","name":"Ericson fluctuations – Wikipedia","description":"From Wikipedia, the free encyclopedia Ericson fluctuations constitute one of the most characteristic features of quantum chaotic scattering in the","datePublished":"2020-12-27","dateModified":"2020-12-27","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki9\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki9\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki9\/ericson-fluctuations-wikipedia\/","wordCount":4127,"articleBody":"From Wikipedia, the free encyclopediaEricson fluctuations constitute one of the most characteristic features of quantum chaotic scattering in the regime of strongly overlapping resonances such as a compound nucleus.[1][2][3] These fluctuations were predicted in 1960 by Torleif Ericson in two seminal articles,[4][5][6][7] further developed in 1963,[8] based on the same statistical assumptions as those used by E. Wigner, C. E. Porter and R. G. Thomas to describe generic properties of resonances in long-lived compound nuclear systems.[9][10][11] In the present case the fluctuations occur in the “continuum” regime for which a large number of such resonances overlap coherently, owing to the short lifetime of the compound nucleus.  At the time it was believed that this would lead to a structure-less behavior. Ericson realized that the opposite was the case with strong, random fluctuations.[12][7]The Ericson fluctuations were first observed in 1964 by P. Von Brentano et al.[13] in nuclear physics giving rise to a vigorous theoretical and experimental programme.[3] They have the curious feature of being both reproducible and random at the same time.[14] The fluctuations are universal and have later been observed in many other areas such as photoionization of hydrogen, uni-molecular dissociation (physical chemistry),[15] perturbed atomic and molecular systems and micro wave billiards.[3][16][17]Present theoretical descriptions of chaotic quantum scattering confirm the predicted properties of the Ericson fluctuations.[9] The universality of the Ericson fluctuations are thus very well established.[3]References[edit]^ Borisenko, Victor E.; Ossicini, Stefano (2013). What is What in the Nanoworld: A Handbook on Nanoscience and Nanotechnology. John Wiley & Sons. ISBN\u00a0978-3-527-64838-2.^ ““Compound-nucleus model”. Encyclopedia Britannica”. www.britannica.com. Retrieved 2021-11-16.{{cite web}}:  CS1 maint: url-status (link)^ a b c d Mitchell, G. E.; Richter, A.; Weidenm\u00fcller, H. A. (2010). “Random matrices and chaos in nuclear physics: Nuclear reactions”. Reviews of Modern Physics. 82 (4): 2845\u20132901. arXiv:1001.2422. Bibcode:2010RvMP…82.2845M. doi:10.1103\/RevModPhys.82.2845. ISSN\u00a00034-6861. S2CID\u00a0118607709.^ Ericson, Torleif (1960). “Fluctuations of Nuclear Cross Sections in the “Continuum” Region”. Physical Review Letters. 5 (9): 430\u2013431. Bibcode:1960PhRvL…5..430E. doi:10.1103\/PhysRevLett.5.430. ISSN\u00a00031-9007.^ Stroke, H. Henry (1999). The Physical Review: The first hundred years. Springer Science & Business Media. p.\u00a0249. ISBN\u00a0978-1-56396-188-5.^ Ericson, Torleif (1960). “The statistical model and nuclear level densities”. Advances in Physics. 9 (36): 425\u2013511. Bibcode:1960AdPhy…9..425E. doi:10.1080\/00018736000101239. ISSN\u00a00001-8732.^ a b “This week’s citation classic” (PDF). garfield.library.upenn.edu. Retrieved 2021-11-16.{{cite web}}:  CS1 maint: url-status (link)^ Ericson, Torleif (1963). “A theory of fluctuations in nuclear cross sections”. Annals of Physics. 23 (3): 390\u2013414. Bibcode:1963AnPhy..23..390E. doi:10.1016\/0003-4916(63)90261-6.^ a b Weidenm\u00fcller, H. A.; Mitchell, G. E. (2009). “Random matrices and chaos in nuclear physics: Nuclear structure”. Reviews of Modern Physics. 81 (2): 539\u2013589. arXiv:0807.1070. Bibcode:2009RvMP…81..539W. doi:10.1103\/RevModPhys.81.539. ISSN\u00a00034-6861. S2CID\u00a016847809.^ Porter, C. E.; Thomas, R. G. (1956). “Fluctuations of Nuclear Reaction Widths”. Physical Review. 104 (2): 483\u2013491. Bibcode:1956PhRv..104..483P. doi:10.1103\/PhysRev.104.483. ISSN\u00a00031-899X.^ Ericson, T; Mayer-Kuckuk, T (1966). “Fluctuations in Nuclear Reactions”. Annual Review of Nuclear Science. 16 (1): 183\u2013206. Bibcode:1966ARNPS..16..183E. doi:10.1146\/annurev.ns.16.120166.001151. ISSN\u00a00066-4243. PMID\u00a05334731.^ Blatt, John M.; Weisskopf, Victor F. (1979). Theoretical Nuclear Physics. New York, NY: Springer New York. doi:10.1007\/978-1-4612-9959-2. ISBN\u00a0978-1-4612-9961-5.^ Von Brentano, P.; Ernst, J.; H\u00e4usser, O.; Mayer-Kuckuk, T.; Richter, A.; Von Witsch, W. (1964). “Statistical fluctuations in the cross sections of the reactions Cl35 (p, \u03b1)S32 and Cl37 (p, \u03b1)S34”. Physics Letters. 9 (1): 48\u201351. Bibcode:1964PhL…..9…48V. doi:10.1016\/0031-9163(64)90210-0. ISSN\u00a00031-9163.^ Weidenm\u00fcller, Hans A. (1990). “Ericson fluctuations versus conductance fluctuations”. Nuclear Physics A. 518 (1\u20132): 1\u201312. doi:10.1016\/0375-9474(90)90531-P.^ Reid, Scott; Reisler, Hanna (1996). “Unimolecular Reaction of NO2: Overlapping Resonances, Fluctuations, and the Transition State”. Journal of Chemical Physics. 100 (2): 474-487. doi:10.1021\/jp952843w.^ Guhr, Thomas; M\u00fcller\u2013Groeling, Axel; Weidenm\u00fcller, Hans A. (1998). “Random-matrix theories in quantum physics: common concepts”. Physics Reports. 299 (4\u20136): 189\u2013425. arXiv:cond-mat\/9707301. Bibcode:1998PhR…299..189G. doi:10.1016\/S0370-1573(97)00088-4. S2CID\u00a0119052579.^ St\u00f6ckmann, Hans-J\u00fcrgen (2010). “Microwave billiards and quantum chaos”. Scholarpedia. 5 (10): 10243. Bibcode:2010SchpJ…510243S. doi:10.4249\/scholarpedia.10243. ISSN\u00a01941-6016.{{cite journal}}:  CS1 maint: date and year (link)"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki9\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki9\/ericson-fluctuations-wikipedia\/#breadcrumbitem","name":"Ericson fluctuations – Wikipedia"}}]}]