In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, is a generalized function on the real numbers...
94 KB (14,099 words) - 16:33, 15 December 2024
Fermi–Dirac distribution of particles over energy states. It is named after Enrico Fermi and Paul Dirac, each of whom derived the distribution independently...
30 KB (4,817 words) - 13:26, 20 November 2024
is its probability distribution is the Dirac delta function), then after time t its location is described by a normal distribution with variance t, which...
150 KB (22,524 words) - 09:02, 17 December 2024
numbers. A discrete probability distribution is often represented with Dirac measures, the probability distributions of deterministic random variables...
47 KB (6,403 words) - 14:52, 16 August 2024
In mathematics a Dirac structure is a geometric structure generalizing both symplectic structures and Poisson structures, and having several applications...
7 KB (940 words) - 15:16, 18 August 2024
against any function. Examples of the latter include the Dirac delta function and distributions defined to act by integration of test functions ψ ↦ ∫ U...
128 KB (21,644 words) - 18:05, 10 November 2024
x = 1. For these limit ratios, the beta distribution becomes a one-point degenerate distribution with a Dirac delta function spike at the right end, x...
244 KB (40,545 words) - 06:26, 16 December 2024
Pareto distribution, named after the Italian civil engineer, economist, and sociologist Vilfredo Pareto, is a power-law probability distribution that is...
47 KB (6,031 words) - 08:30, 3 December 2024
mechanics and mathematics, a Boltzmann distribution (also called Gibbs distribution) is a probability distribution or probability measure that gives the...
20 KB (2,478 words) - 02:32, 17 September 2024
Planck constant (redirect from Diracs constant)
,: 112 the Dirac constant: 275 : 726 : xv (or Dirac's constant: 148 : 604 : 313 ), the Dirac h {\textstyle h} : xviii (or Dirac's h {\textstyle...
69 KB (6,156 words) - 03:52, 20 December 2024
Schrödinger equation (category CS1 German-language sources (de))
not square-integrable. Likewise a position eigenstate would be a Dirac delta distribution, not square-integrable and technically not a function at all. Consequently...
74 KB (10,234 words) - 19:25, 14 December 2024
Bose–Einstein statistics (redirect from Bose-Einstein distribution)
above, both the Bose–Einstein distribution and the Fermi–Dirac distribution approaches the Maxwell–Boltzmann distribution in the limit of high temperature...
38 KB (6,024 words) - 12:47, 4 October 2024
However the pertinent probability distribution in Fermi–Dirac statistics is actually a simple Bernoulli distribution, with the probability factor given...
13 KB (1,783 words) - 10:09, 31 October 2024
slope at x = 0. As k goes to infinity, the Weibull distribution converges to a Dirac delta distribution centered at x = λ. Moreover, the skewness and coefficient...
39 KB (5,823 words) - 04:43, 2 December 2024
Fermi gas (category Fermi–Dirac statistics)
of many non-interacting fermions. Fermions are particles that obey Fermi–Dirac statistics, like electrons, protons, and neutrons, and, in general, particles...
33 KB (5,618 words) - 23:24, 28 November 2024
Magnetic monopole (redirect from Dirac monopole)
magnetic charge started with a paper by the physicist Paul Dirac in 1931. In this paper, Dirac showed that if any magnetic monopoles exist in the universe...
75 KB (8,388 words) - 14:15, 19 December 2024
Bernoulli distribution with only two distinct values or the sum of two different Dirac delta functions (a bi-delta distribution). The distribution of this...
49 KB (6,321 words) - 06:13, 21 April 2024
particle physics, a fermion is a subatomic particle that follows Fermi–Dirac statistics. Fermions have a half-odd-integer spin (spin 1/2, spin 3/2...
7 KB (851 words) - 01:06, 14 December 2024
The Wigner quasiprobability distribution (also called the Wigner function or the Wigner–Ville distribution, after Eugene Wigner and Jean-André Ville) is...
38 KB (5,299 words) - 23:21, 15 November 2024
Canonical ensemble (redirect from Canonical probability distribution)
thermodynamic variable of the canonical ensemble, determining the probability distribution of states, is the absolute temperature (symbol: T). The ensemble typically...
23 KB (2,828 words) - 20:30, 29 November 2024
inverse Gaussian distribution (also known as the Wald distribution) is a two-parameter family of continuous probability distributions with support on (0...
27 KB (3,060 words) - 05:39, 19 September 2024
from the Dirac equation, a fundamental equation connecting the electron's spin with its electromagnetic properties. Reduction of the Dirac equation for...
23 KB (3,358 words) - 18:26, 23 October 2024
zero or as α approaches zero the distribution will approach a Dirac delta function δ(x − μ). The stable distribution can be restated as the real part...
46 KB (6,795 words) - 18:11, 7 December 2024
Abraham–Lorentz force (redirect from Abraham–Lorentz–Dirac force)
the relativistic version is called the Lorentz–Dirac force or collectively known as Abraham–Lorentz–Dirac force. The equations are in the domain of classical...
38 KB (5,485 words) - 15:59, 18 November 2024
product distribution is a probability distribution constructed as the distribution of the product of random variables having two other known distributions. Given...
38 KB (8,272 words) - 15:44, 18 December 2024
support on [ 0 , ∞ ) {\displaystyle [0,\infty )} are shown. The Dirac delta distribution represents the case where everyone has the same wealth (or income);...
95 KB (10,843 words) - 08:24, 17 December 2024
Prior probability (redirect from Prior probability distribution)
book) one derives the so-called distribution functions f {\displaystyle f} for various statistics. In the case of Fermi–Dirac statistics and Bose–Einstein...
43 KB (6,753 words) - 06:22, 20 December 2024
the unitary state with position x {\displaystyle x} is the Dirac delta (function) distribution centered at the position x {\displaystyle x} , often denoted...
16 KB (2,617 words) - 10:26, 17 October 2024
Satyendra Nath Bose (category CS1 German-language sources (de))
particles that obey Bose statistics, bosons, was named after Bose, by Paul Dirac. A polymath, he had a wide range of interests in varied fields, including...
37 KB (3,506 words) - 14:24, 13 December 2024
statistics, and Fermi–Dirac statistics.) Using the Thomas−Fermi approximation, the number of particles dNE with energy between E and E + dE is: d N E = d g...
15 KB (2,746 words) - 10:37, 18 December 2024