A Fermi resonance was explained by the creator of the world's first what?
c39e872fbbfb8cdb78bea48b9af0f1b0
Fermi resonance A Fermi resonance is the shifting of the energies and intensities of absorption bands in an infrared or Raman spectrum. It is a consequence of quantum mechanical mixing. The phenomenon was explained by the Italian physicist Enrico Fermi.
00e502036ef97a7ea46d7123bcabb84f
Enrico Fermi Enrico Fermi ( ; ] ; 29 September 1901 – 28 November 1954) was an Italian physicist and the creator of the world's first nuclear reactor, the Chicago Pile-1. He has been called the "architect of the nuclear age" and the "architect of the atomic bomb". He was one of the very few physicists in history to excel both theoretically and experimentally. Fermi held several patents related to the use of nuclear power, and was awarded the 1938 Nobel Prize in Physics for his work on induced radioactivity by neutron bombardment and the discovery of transuranic elements. He made significant contributions to the development of quantum theory, nuclear and particle physics, and statistical mechanics.
27bdffe146d0cfb5101290ee8237f49b
Thomas–Fermi model The Thomas–Fermi (TF) model, named after Llewellyn Thomas and Enrico Fermi, is a quantum mechanical theory for the electronic structure of many-body systems developed semiclassically shortly after the introduction of the Schrödinger equation. It stands separate from wave function theory as being formulated in terms of the electronic density alone and as such is viewed as a precursor to modern density functional theory. The TF model is correct only in the limit of an infinite nuclear charge. Using the approximation for realistic systems yields poor quantitative predictions, even failing to reproduce some general features of the density such as shell structure in atoms and Friedel oscillations in solids. It has, however, found modern applications in many fields through the ability to extract qualitative trends analytically and with the ease at which the model can be solved. The kinetic energy expression of Thomas–Fermi theory is also used as a component in more sophisticated density approximation to the kinetic energy within modern orbital-free density functional theory.
5f31af557dff37223e24b6c0e3a8fdf7
Robert Pound Robert Vivian Pound (May 16, 1919 – April 12, 2010) was an American physicist who helped discover nuclear magnetic resonance (NMR) and who devised the famous Pound–Rebka experiment supporting general relativity. He became a tenured professor of physics at Harvard without ever having received a graduate degree.
061be4635a897b0cead911fb136289a1
David Bohm David Joseph Bohm FRS (December 20, 1917 – October 27, 1992) was an American scientist who has been described as one of the most significant theoretical physicists of the 20th century and who contributed unorthodox ideas to quantum theory, neuropsychology and the philosophy of mind.
7913a1685319aec445dd328b07714c3f
Seth Neddermeyer Seth Henry Neddermeyer (September 16, 1907 – January 29, 1988) was an American physicist who co-discovered the muon, and later championed the Implosion-type nuclear weapon while working on the Manhattan Project at the Los Alamos Laboratory during World War II.
14bf5151e005eb4fa651bba5ba921d08
Rudolf Grimm Rudolf Grimm (born 10 November 1961) is an experimental physicist from Austria. His work centres on ultracold atoms and quantum gases. He was the first scientist worldwide who, with his team, succeeded in realizing a Bose–Einstein condensation of molecules.
d0fd68e4467ca567cc61523aa37483d0
Automatic Computing Engine The Automatic Computing Engine (ACE) was an early electronic stored-program computer designed by Alan Turing. The project was managed by John R. Womersley, superintendent of the Mathematics Division of the National Physical Laboratory (NPL). The use of the word "Engine" was in homage to Charles Babbage and his Difference Engine and Analytical Engine. Turing's technical design "Proposed Electronic Calculator" was the product of his theoretical work in 1936 "On Computable Numbers" and his wartime experience at Bletchley Park where the Colossus computers had been successful in breaking German military codes. In his 1936 paper, Turing described his idea as a "universal computing machine", but it is now known as the Universal Turing machine.
8549c403b99b8059063c20d230ed062b
Victor Weisskopf Victor Frederick "Viki" Weisskopf (September 19, 1908 – April 22, 2002) was an Austrian-born American theoretical physicist. He did postdoctoral work with Werner Heisenberg, Erwin Schrödinger, Wolfgang Pauli and Niels Bohr. During World War II he was Group Leader of the Theoretical Division of the Manhattan Project at Los Alamos, and later campaigned against the proliferation of nuclear weapons.
a12be5151867c16581c96d60f288d2cd
Abraham Zelmanov Abraham Zelmanov (May 15, 1913 – February 2, 1987), was a prominent scientist working in the General Theory of Relativity and cosmology. He first constructed, in 1944, the complete mathematical method to calculate physical observable quantities in the General Theory of Relativity (the theory of chronometric invariants). Applying the mathematical apparatus, in the 1940s, he established the basics of the theory of inhomogeneous anisotropic universe, where he determined specific kinds of all cosmological models — scenarios of evolution — which could be theoretically conceivable for a truly inhomogeneous and anisotropic Universe in the framework of Einstein's theory.
ef8b52811ce1b25cd46f102567b1d59f
IEEE Maxwell Award James Clerk Maxwell FRS FRSE, is the father of electromagnetic waves, known for his famous
3d8b2217c7baf28060d267795cfc9894
Fermi–Ulam model The Fermi–Ulam model (FUM) is a dynamical system that was introduced by Polish mathematician Stanislaw Ulam in 1961.
2fa4924f28df3531f8a899dd30ba665e
Copenhagen interpretation The Copenhagen interpretation is an expression of the meaning of quantum mechanics that was largely devised in the years 1925 to 1927 by Niels Bohr and Werner Heisenberg. It remains one of the most commonly taught interpretations of quantum mechanics.
59159f041296bab98d0eba248dc60467
Shin'ichirō Tomonaga Shin'ichirō Tomonaga (朝永 振一郎 , Tomonaga Shin'ichirō , March 31, 1906 – July 8, 1979) , usually cited as Sin-Itiro Tomonaga in English, was a Japanese physicist, influential in the development of quantum electrodynamics, work for which he was jointly awarded the Nobel Prize in Physics in 1965 along with Richard Feynman and Julian Schwinger.
a65670ad0c0f9be0847bd3c6078eb2f2
Lawrence R. Hafstad Dr. Lawrence R. Hafstad (June 18, 1904 – October 12, 1993) was an American electrical engineer and physicist notable for his pioneering work on nuclear reactors. In 1939, he created the first nuclear fission reaction in the United States.
6ea931c7bb58eaffad8cc28fcc2b1ecd
Auger effect The Auger effect is a physical phenomenon in which the filling of an inner-shell vacancy of an atom is accompanied by the emission of an electron from the same atom. When a core electron is removed, leaving a vacancy, an electron from a higher energy level may fall into the vacancy, resulting in a release of energy. Although most often this energy is released in the form of an emitted photon, the energy can also be transferred to another electron, which is ejected from the atom; this second ejected electron is called an Auger electron. The effect was first discovered by Lise Meitner in 1922; Pierre Victor Auger independently discovered the effect shortly after and is credited with the discovery in most of the scientific community, in accordance with Stiegler's law of eponymy.
1f4c5807014050cfd2325b57b5619891
John Vincent Atanasoff John Vincent Atanasoff (October 4, 1903 – June 15, 1995) was an American physicist and inventor, best known for being credited with inventing the first electronic digital computer.
f4b5fe5adca2fae10f1a0fa2780a76dd
Peter Higgs Peter Ware Higgs (born 29 May 1929) is a British theoretical physicist, emeritus professor at the University of Edinburgh, and Nobel Prize laureate for his work on the mass of subatomic particles.
cfa3c87d01239ee208c9e9e20eee372e
Guglielmo Marconi Guglielmo Marconi, 1st Marquis of Marconi ( ; ] ; 25 April 187420 July 1937) was an Italian inventor and electrical engineer known for his pioneering work on long-distance radio transmission and for his development of Marconi's law and a radio telegraph system. He is usually credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
1daa733194b1674da8921ca8ad21a4a7
Fermi gas A Fermi gas is a phase of matter which is an ensemble of a large number of fermions (named after Enrico Fermi). Fermions are particles that obey Fermi–Dirac statistics. These statistics determine the energy distribution of fermions in a Fermi gas in thermal equilibrium, and is characterized by their number density, temperature, and the set of available energy states.
15765530b00e6e1f1714efca5db89af4
Charles Babbage Charles Babbage {'1': ", '2': ", '3': ", '4': "} ( ; 26 December 1791 – 18 October 1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.
765d68a25933142786145077e8b644ab
Enrico Fermi Prize The Enrico Fermi Prize, first awarded in 2001, is given by the Italian Physical Society (Società Italiana di Fisica). It is a yearly award of EUR 30,000 honoring one or more Members of the Society who have "particularly honoured physics with their discoveries."