• Thumbnail for Dirac delta function
    In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, is a generalized function on the real numbers...
    97 KB (14,359 words) - 02:34, 9 July 2025
  • Thumbnail for Fermi–Dirac statistics
    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 (4,823 words) - 08:48, 13 July 2025
  • Thumbnail for Probability distribution
    probability distribution is often represented with Dirac measures, also called one-point distributions (see below), the probability distributions of deterministic...
    48 KB (6,688 words) - 17:43, 6 May 2025
  • and Dirac again introduced special symbols for it: K {\textstyle K} in the case of Schrödinger, and h {\textstyle h} in the case of Dirac. Dirac continued...
    45 KB (4,779 words) - 12:45, 30 June 2025
  • 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 (21,580 words) - 18:41, 21 June 2025
  • Thumbnail for Boltzmann distribution
    mechanics and mathematics, a Boltzmann distribution (also called Gibbs distribution) is a probability distribution or probability measure that gives the...
    21 KB (2,593 words) - 12:56, 25 June 2025
  • Thumbnail for Normal distribution
    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...
    148 KB (21,531 words) - 03:40, 1 July 2025
  • In mathematics a Dirac structure is a geometric structure generalizing both symplectic structures and Poisson structures, and having several applications...
    7 KB (940 words) - 09:59, 5 May 2025
  • Thumbnail for Bose–Einstein statistics
    above, both the Bose–Einstein distribution and the Fermi–Dirac distribution approaches the Maxwell–Boltzmann distribution in the limit of high temperature...
    39 KB (6,051 words) - 17:49, 13 June 2025
  • Thumbnail for Weibull distribution
    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 (5,828 words) - 07:14, 7 July 2025
  • Thumbnail for Wigner quasiprobability distribution
    The Wigner quasiprobability distribution (also called the Wigner function or the Wigner–Ville distribution, after Eugene Wigner and Jean-André Ville) is...
    38 KB (5,290 words) - 22:26, 28 May 2025
  • Thumbnail for Magnetic 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...
    73 KB (8,385 words) - 07:05, 12 July 2025
  • Thumbnail for Logistic distribution
    However the pertinent probability distribution in Fermi–Dirac statistics is actually a simple Bernoulli distribution, with the probability factor given...
    13 KB (1,789 words) - 17:39, 17 March 2025
  • 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...
    75 KB (10,309 words) - 15:11, 8 July 2025
  • Thumbnail for Pareto distribution
    Pareto distribution, named after the Italian civil engineer, economist, and sociologist Vilfredo Pareto, is a power-law probability distribution that is...
    47 KB (6,034 words) - 07:18, 11 July 2025
  • Thumbnail for Stable distribution
    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 (6,794 words) - 22:44, 17 June 2025
  • Thumbnail for Multimodal distribution
    Bernoulli distribution with only two distinct values or the sum of two different Dirac delta functions (a bi-delta distribution). The distribution of this...
    50 KB (6,390 words) - 20:08, 23 June 2025
  • Thumbnail for Beta distribution
    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...
    245 KB (40,559 words) - 20:35, 30 June 2025
  • 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...
    39 KB (5,497 words) - 07:29, 7 July 2025
  • Thumbnail for Fokker–Planck equation
    Fokker–Planck equation (category CS1 German-language sources (de))
    independently discovered it in 1931. When applied to particle position distributions, it is better known as the Smoluchowski equation (after Marian Smoluchowski)...
    35 KB (6,546 words) - 10:53, 11 July 2025
  • product distribution is a probability distribution constructed as the distribution of the product of random variables having two other known distributions. Given...
    41 KB (8,987 words) - 08:48, 30 June 2025
  • Thumbnail for Planck's law
    equilibrium distributions which include the Bose–Einstein distribution, the Fermi–Dirac distribution and the Maxwell–Boltzmann distribution. A black-body...
    141 KB (18,065 words) - 17:33, 12 June 2025
  • Thumbnail for Fermi gas
    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 (5,630 words) - 17:17, 7 July 2025
  • 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) - 20:06, 15 April 2025
  • particle becomes stable as the Lorentzian distribution f sharpens infinitely to 2Mδ(E2 − M2), where δ is the Dirac delta function (point impulse). In general...
    10 KB (1,487 words) - 04:49, 25 May 2025
  • Thumbnail for Dark matter
    original on 28 July 2018. Freese, K. (1986). "Can Scalar Neutrinos or Massive Dirac Neutrinos be the Missing Mass?". Physics Letters B. 167 (3): 295–300. Bibcode:1986PhLB...
    139 KB (15,040 words) - 17:30, 25 June 2025
  • Thumbnail for Fermion
    particle physics, a fermion is a subatomic particle that follows Fermi–Dirac statistics. Fermions have a half-integer spin (spin ⁠1/2⁠, spin ⁠3/2⁠, etc...
    7 KB (849 words) - 20:57, 22 May 2025
  • 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
  • Thumbnail for Satyendra Nath Bose
    Satyendra Nath Bose (category CS1 German-language sources (de))
    particles class described by Bose's statistics, bosons, were named by Paul Dirac. A polymath, he had a wide range of interests in varied fields, including...
    37 KB (3,544 words) - 15:05, 3 July 2025
  • Thumbnail for Louis de Broglie
    of two Dirac neutrinos. In 1938, the concept was challenged as not rotationally invariant and work on the concept was largely discontinued. De Broglie's...
    37 KB (4,127 words) - 06:28, 24 June 2025