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Topic: Fermi statistics


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In the News (Tue 18 Jun 19)

  
  Enrico Fermi - Wikipedia, the free encyclopedia
Enrico Fermi was born in Rome, Italy in 1901.
Fermi became unhappy, though, with what he saw as an excessively formal theoretical style under the influence of Max Born, and so after six months left for the University of Leiden, Netherlands, to work with Paul Ehrenfest.
Fermi took a professorship in Rome (the first for theoretical physics in Italy, created for him by professor Orso Maria Corbino, director of the Institute of Physics).
en.wikipedia.org /wiki/Enrico_Fermi   (1495 words)

  
 MSN Encarta - Enrico Fermi
Fermi studied with German physicist Max Born in Göttingen, Germany, from 1922 to 1924.
Fermi became a professor at Columbia University in New York in 1939, and in 1941 moved to Chicago, Illinois, for a professorship at the University of Chicago.
The method that Fermi developed became known as Fermi statistics, and the particles that obey the Pauli exclusion principle became known as fermions.
encarta.msn.com /encyclopedia_761578253/Enrico_Fermi.html   (1116 words)

  
 Fermi-Dirac statistics - Wikipedia, the free encyclopedia
Statistical thermodynamics is used to describe the behaviour of large numbers of particles.
M-B statistics are particularly useful for studying gases, and B-E statistics are particularly useful when dealing with photons and other bosons.
F-D statistics was introduced in 1926 by Enrico Fermi and Paul Dirac and applied in 1927 by Arnold Sommerfeld to electrons in metals.
en.wikipedia.org /wiki/Fermi_statistics   (929 words)

  
 Kids.net.au - Encyclopedia Enrico Fermi -
Enrico Fermi, (born September 29, 1901 in Rome, Italy; died 1954) was an Italian-American physicist most noted for his work on beta decay, the development of the first nuclear reactor and for the development of quantum theory.
In 1923 Fermi spent 6 months in Göttingen at Max Born's school, but was not happy with the excessively formal theoretical style of the leading school of quantum physics at the time.
Fermi remained in Rome until 1938, when he was awarded the Nobel Prize; Fascism had released its racial laws, so Fermi (whose wife Laura Capon was of Jewish religion) after the prize immediately emigrated to New York and began working at Columbia University.
www.kids.net.au /encyclopedia-wiki/en/Enrico_Fermi   (1048 words)

  
 Fermi statistics. Who is Fermi statistics? What is Fermi statistics? Where is Fermi statistics? Definition of Fermi ...
In statistical thermodynamics, Fermi-Dirac statistics determines the statistical distribution of fermions over the energy states for a system in thermal equilibrium.
While F-D statistics holds for fermions, B-E statistics plays the same role for bosons – the other type of particle found in nature.
It is a fundamental postulate of statistical physics that at thermal equilibrium, each of these microstates will be equally likely, subject to the constraints of known total energy and number of particles.
www.knowledgerush.com /kr/encyclopedia/Fermi_statistics   (547 words)

  
 Enrico Fermi   (Site not responding. Last check: 2007-11-05)
Fermi is known as the originator of Fermi paradox in SETI research when in a discussion of possibility that intelligent aliens might exist he asked "Where are they?"
Fermi problems such as the classic "How many tuners are there in Chicago?" are named Fermi's use of such estimation problems to teach students the importance dimensional analysis approximation methods and clear identification of assumptions.
In 1923 Fermi spent 6 months in Göttingen Max Born 's school but was not happy with excessively formal theoretical style of the leading of quantum physics at the time.
www.freeglossary.com /Enrico_Fermi   (1333 words)

  
 Fermi-Dirac statistics   (Site not responding. Last check: 2007-11-05)
In statistical thermodynamics Fermi - Dirac statistics determines the statistical distribution of fermions over the energy states for a in thermal equilibrium.
M-B statistics describes the velocity of particles in a classical gas and the classical (high-temperature) limit of both F-D B-E statistics.
It is a postulate of statistical physics that at thermal equilibrium each of these microstates will be likely subject to the constraints of known energy and number of particles.
www.freeglossary.com /Fermi_Dirac_statistics   (807 words)

  
 Encyclopedia: Fermi-Dirac statistics   (Site not responding. Last check: 2007-11-05)
Statistical mechanics is the application of statistics, which includes mathematical tools for dealing with large populations, to the field of mechanics, which is concerned with the motion of particles or objects when subjected to a force.
Statistics is a type of data analysis whose practice includes the planning, summarizing, and interpreting of observations of a system possibly followed by predicting or forecasting of future events based on a mathematical model of the system being observed.
Bose-Einstein statistics For other topics related to Einstein see Einstein (disambig) In statistical mechanics, Bose-Einstein statistics determines the statistical distribution of identical indistinguishable bosons over the energy states in thermal equilibrium.
www.nationmaster.com /encyclopedia/Fermi_Dirac-statistics   (2228 words)

  
 Fermi statistics   (Site not responding. Last check: 2007-11-05)
fermi statistics ontario statistics obesity statistics national statistics mexico statistics mattress statistics marriage statistics vital statistics marketing statistics literacy statistics labor statistics kenya statistics
Fermi Surface Database A database of Fermi surfaces for elemental solids in VRML and gif.
Fermi National Accelerator Laboratory (FNAL or Fermilab) Fermilab explores the fundamental nature of matter and energy by providing leadership and resources for qualified researchers to conduct basic research at the frontiers of high energy physics.
www.serebella.com /encyclopedia/article-Fermi_statistics.html   (327 words)

  
 Enrico Fermi - Biography
Enrico Fermi was born in Rome on 29th September, 1901, the son of Alberto Fermi, a Chief Inspector of the Ministry of Communications, and Ida de Gattis.
In 1944, Fermi became American citizen, and at the end of the war (1946) he accepted a professorship at the Institute for Nuclear Studies of the University of Chicago, a position which he held until his untimely death in 1954.
Fermi was member of several academies and learned societies in Italy and abroad (he was early in his career, in 1929, chosen among the first 30 members of the Royal Academy of Italy).
www.nobel.se /physics/laureates/1938/fermi-bio.html   (990 words)

  
 Fermi-Dirac statistics -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-05)
Fermi-Dirac (or F-D) statistics are closely related to (Click link for more info and facts about Maxwell-Boltzmann statistics) Maxwell-Boltzmann statistics and ((physics) statistical law obeyed by a system of particles whose wave function is not changed when two particles are interchanged (the Pauli exclusion principle does not apply)) Bose-Einstein statistics.
F-D statistics are most often used for the study of (An elementary particle with negative charge) electrons in (A three-dimensional shape) solids.
For this reason, F-D statistics are well-known not only to physicists, but also to (A person trained in practical applications of the theory of electricity) electrical engineers.
www.absoluteastronomy.com /encyclopedia/F/Fe/Fermi-Dirac_statistics1.htm   (1176 words)

  
 Enrico Fermi
Enrico Fermi (September 29, 1901 – 29 November 1954) was an Italian-American physicist most noted for his work on beta decay, the development of the first nuclear reactor and for the development of quantum theory.
Fermi problems, such as the classic "How many piano tuners are there in Chicago?" are named after Fermi's use of such estimation problems to teach students the importance of dimensional analysis, approximation methods, and clear identification of assumptions.
Eventually Fermi and Szilard's reactor work were folded in to the Manhattan Project.
www.brainyencyclopedia.com /encyclopedia/e/en/enrico_fermi.html   (1121 words)

  
 4Reference || Enrico Fermi   (Site not responding. Last check: 2007-11-05)
Fermi won the 1938 Nobel Prize in Physics.
Fermi is known as the originator of the Fermi paradox in SETI research, when in a discussion of the possibility that intelligent aliens might exist, he famously asked "Where are they?" Fermions, as well as the Fermi National Accelerator Laboratory, are named in his honor.
On November 29, 1954 Fermi died of cancer in Chicago, Illinois and was interred there in the Oak Woods Cemetery.
www.4reference.net /encyclopedias/wikipedia/Enrico_Fermi.html   (989 words)

  
 Fermi-Dirac statistics --  Encyclopædia Britannica
The aggregation of particles in the same state, which is characteristic of particles obeying Bose-Einstein statistics, accounts for the cohesive streaming of laser light and the frictionless creeping of superfluid helium.
Statistics appear in the claims of advertisers, in predictions of election results and opinion polls, in cost-of-living indexes, and in reports of business...
Among Fermi's writing are a biography of her husband, Atoms in the Family, and Atoms for the World, Mussolini, and Illustrious Immigrants.
www.britannica.com /eb/article?tocId=9034054&query=multivariate%20statistics&ct=   (870 words)

  
 Enrico Fermi   (Site not responding. Last check: 2007-11-05)
Enrico Fermi (September 29, 1901 – November 28, 1954) was an Italian physicist most noted for his work on beta decay, the development of the first nuclear reactor, and for the development of quantum theory.
Fermi was widely regarded as the only physicist of the twentieth century who excelled both theoretically and experimentally (see link below in 'References').
On November 28, 1954, Fermi died at the age of 53 of stomach cancer in Chicago and was interred there in Oak Woods Cemetery.
www.worldhistory.com /wiki/E/Enrico-Fermi.htm   (1511 words)

  
 Public Domain Content: Enrico Fermi   (Site not responding. Last check: 2007-11-05)
Honors Fermi led the construction of the first nuclear pile, which produced the first controlled nuclear chain reaction.
Early years Fermi was inseparable in childhood from his brother Giulio, who was just one year older.
Fermi recalled the beginning of the project in a speech given in 1954 when he retired as President of the American Physical Society: "I remember very vividly the first month, January, 1939, that I started working at the Pupin Laboratories because things began happening very fast.
www.publicdock.com /Physics/Enrico_Fermi.shtml   (880 words)

  
 Fermi-Dirac statistics Definition / Fermi-Dirac statistics Research   (Site not responding. Last check: 2007-11-05)
In statistical mechanicsStatistical mechanics is the application of statistics, which includes mathematical tools for dealing with large populations, to the field of mechanics, which is concerned with the motion of particles or objects when subjected to a force.
It provides a framework for relating the microscopic properties of individual atoms and molecules to the macroscopic or bulk properties of materials that can be observed in every day life, therefore explaining thermodynamics as a natural result of statistics and mechanics...
[click for more], FermiEnrico Fermi (September 29, 1901 – November 28, 1954) was an Italian-American physicist most noted for his work on beta decay, the development of the first nuclear reactor, and for the development of quantum theory.
www.elresearch.com /Fermi-Dirac_statistics   (540 words)

  
 Fermi-Dirac statistics: Definition and Links by Encyclopedian.com - All about Fermi-Dirac statistics
Say if there are two fermions placed in a system with four levels.
Depending on the values of the energy for each state, it may be that total energy for some of these 6 combinations is the same as others.
μ is the chemical potential, often called the Fermi energy and given the symbol E
www.encyclopedian.com /fe/Fermi-Dirac-statistics.html   (584 words)

  
 Book review: The Fermi Age
Fermi Remembered is the permanent record of that historic occasion, along with some new material added by Cronin.
Along with essays on Fermi's life and scientific legacy are historic photographs of Fermi with famous colleagues.
Within those hours Fermi inspired many physics students by his clear explanations of complex problems, wrote a steady stream of important scientific papers, helped establish the University of Chicago as the place for the study of high-energy physics, and -- as infrequently as possible -- served on committees.
www.anl.gov /Media_Center/News/2004/Fermi_Remembered_041006.html   (462 words)

  
 MSN Encarta - Search Results - Fermi-Dirac statistics   (Site not responding. Last check: 2007-11-05)
Statistical mechanics had to be extended in the 1920s to incorporate the new principles of quantum theory.
Statistics, branch of mathematics that deals with the collection, organization, and analysis of numerical data and with such problems as experiment...
Census, term usually referring to an official count by a national government of its country’s population.
encarta.msn.com /Fermi-Dirac_statistics.html   (144 words)

  
 Fermi statistics, charge carrier concentrations, dopants
Figure 16: The position of the Fermi level is in the middle of the band gap for pure (intrinsic) insulators (a) and semi conductors (b).
Semi-conductor behaviour is defined by the conductivity due to the electrons crossing the (narrow) band gap due to thermal excitations.
Part of the effect of the periodic lattice potential can therefore be modelled by simply replacing the mass of the electron with its effective mass in the equation 52 for the multiplicity of states
www.src.wits.ac.za /pages/teaching/Connell/phys284/2005/lecture-07/lecture_07/node6.html   (1900 words)

  
 Enrico Fermi - Term Explanation on IndexSuche.Com
Enrico Fermi; Interestingly the flboard contains an error: in the equation for alpha, h bar and e are the wrong way around
Fermi is known as the originator of the Fermi_paradox in SETI research, when in a discussion of the possibility that intelligent aliens might exist, he famously asked "Where are they?" Fermions, as well as the Fermi_National_Accelerator_Laboratory, are named in his honor.
Fermi_problems, such as the classic "How many piano tuners are there in Chicago?" are named after Fermi's use of such estimation problems to teach students the importance of dimensional_analysis, approximation methods, and clear identification of assumptions.
www.indexsuche.com /Enrico_Fermi.html   (916 words)

  
 Fermi statistics and `level smearing'   (Site not responding. Last check: 2007-11-05)
In these cases it is either necessary to choose a different structure, or else `smear out' the occupation of the levels using Fermi statistics, simulating a finite temperature distribution.
Where Fermi statistics have been used it is stated in the text.
Use of Fermi statistics does not always lead to the correct structures since, for example, the driving force for a Jahn-Teller distortion will be removed in this way.
www.hpc.susx.ac.uk /~ewels/science/thesis/html/node34.html   (247 words)

  
 Enrico Fermi   (Site not responding. Last check: 2007-11-05)
Oppenheimer wakes up in a cheap motel room, Enrico Fermi finds himself in a Santa Fe gutter, and Leo Szilard "in his first conscious minute in the new world...
The students will answer Fermi Questions — named after Italian physicist Enrico Fermi, who was known for his ability to make good approximate calculations...
But even then, thinking men (some of whom, such as Robert Openheimer and Enrico Fermi, had played major roles in creating the bomb) voiced fears that science...
www.wikiverse.org /enrico-fermi   (1229 words)

  
 List of cancer patients: Enrico Fermi
Enrico Fermi, (born September 29, 1901 in Rome, Italy; [Enrico Fermi.png] died 1954) was an Italian-American physicist most noted for his work on beta decay, the development of the first nuclear reactor and for the development of quantum theory.
He is also known as the originator of the Fermi paradox in SETI research, when in a discussion of the possibility that intelligent aliens might exist, he famously asked "Where are they?" Life History Fermi was inseparable in childhood from his brother Giulio, who was just one year older.
He never forgot this experience of being ahead of his time, and used to tell his protegŽs: "Never be first; try to be second." On November 29, 1954 Fermi died of cancer in Chicago, Illinois.
www.americanfactfinders.com /List_of_cancer_patients/Enrico_Fermi.shtml   (882 words)

  
 Enrico Fermi free essays
Enrico Fermi was born on September 29, 1901 in Rome, Italy.
He was the son of Alberto Fermi, a chief inspector of the Ministry of Communications, and Ida de Gattis, a schoolteacher.
Fermi discovered the statistical laws known today as the “Fermi statistics,” in 1926.
www.needfreeessays.com /viewpaper/13609.html   (192 words)

  
 Fermi Level applet
This applet shows the relationship between the Fermi level position in the band gap and the carrier concentration in the energy bands in a graphical way.
Fermi Level vs. Carrier Concentration and Doping of Donor and Acceptor Impurities
Fermi statistics relate the carrier concentration (n and p) in the energy band to the Fermi level position E
www.mtmi.vu.lt /pfk/funkc_dariniai/sol_st_phys/fermi_level_applet.htm   (617 words)

  
 Daniel C. Hong, abstract   (Site not responding. Last check: 2007-11-05)
We first demonstrate that the granular statistics in the presence of gravity cross over from Boltzmann to Fermi statistics as the strength of the excitation decreases.
We also discuss some of the puzzles in the thermodynamic theory, which are associated with (i) the anisotropy of the system due to gravity and (ii) the excluded volume effect due to finite diameter.
Next, based on Enskog theory of hard spheres, we show that the crossover from the Fermi statistics to Boltzmann statistics arises via the condensation of hard spheres into the ground state, the mechanism of which appears to be mathematically similar to the condensation of Bosons into the ground state.
bioinf.charite.de /thorsten/GGHonnef1999/HeraeusAbstracts/Hong.html   (268 words)

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