• Thumbnail for Dispersion relation
    electrical engineering, dispersion relations describe the effect of dispersion on the properties of waves in a medium. A dispersion relation relates the wavelength...
    15 KB (1,909 words) - 13:31, 26 May 2025
  • relationship: the frequency dispersion relation ω 2 = Ω 2 ( k ) . {\displaystyle \omega ^{2}=\Omega ^{2}(k).\,} The dispersion relation has two solutions: ω...
    30 KB (3,434 words) - 18:07, 14 April 2025
  • In physics, the energy–momentum relation, or relativistic dispersion relation, is the relativistic equation relating total energy (which is also called...
    26 KB (3,899 words) - 16:07, 6 July 2025
  • Clavin–Garcia equation or Clavin–Garcia dispersion relation provides the relation between the growth rate and the wave number of the perturbation superposed...
    4 KB (632 words) - 20:42, 17 July 2024
  • Thumbnail for M–sigma relation
    The M–sigma (or M–σ) relation is an empirical correlation between the stellar velocity dispersion σ of a galaxy bulge and the mass M of the supermassive...
    13 KB (1,608 words) - 08:22, 20 May 2025
  • different states of matter. Dispersions are classified in a number of different ways, including how large the particles are in relation to the particles of the...
    19 KB (2,102 words) - 03:00, 25 May 2025
  • Thumbnail for Phonon polariton
    transverse optical phonons, this is due to the particular form of the dispersion relation of the phonon and photon and their interaction. Photons consist of...
    18 KB (2,527 words) - 22:01, 22 May 2025
  • (proportional to momentum) is called a dispersion relation. Light waves in a vacuum have linear dispersion relation between frequency: ω = c k {\displaystyle...
    70 KB (8,040 words) - 02:19, 5 July 2025
  • Thumbnail for Density of states
    DOS as a function of the wave vector, the system-specific energy dispersion relation between E and k must be known. In general, the topological properties...
    36 KB (5,572 words) - 17:14, 22 May 2025
  • data. Dispersion (optics) Linear response function Numerical analytic continuation John S. Toll (1956). "Causality and the Dispersion Relation: Logical...
    23 KB (3,030 words) - 12:06, 1 July 2025
  • § Proof of the general case for a proof of this relation). An example assuming a parabolic dispersion relation for the density of states and the Maxwell–Boltzmann...
    14 KB (1,939 words) - 20:46, 26 January 2025
  • Thumbnail for Tully–Fisher relation
    galaxy's kinematic morphology, such that more dispersion-supported systems scatter below the relation. The tightest correlation is recovered when considering...
    7 KB (875 words) - 20:41, 24 October 2024
  • Thumbnail for Debye model
    Debye model (category CS1 German-language sources (de))
    identical, as both are examples of a massless Bose gas with a linear dispersion relation. For a cube of side-length L {\displaystyle L} , the resonating modes...
    47 KB (9,147 words) - 14:07, 29 March 2025
  • empirically measured parameter, carrier mobility. In general the dispersion relation cannot be approximated as parabolic, and in such cases the effective...
    27 KB (3,717 words) - 07:00, 20 February 2025
  • in the numerator can be ignored. We derive the ion acoustic wave dispersion relation for a linearized fluid description of a plasma with electrons and...
    10 KB (2,461 words) - 09:51, 22 May 2025
  • dispersion, i.e., peaks in the dispersion relation. Schemes are generally grouped into two categories: material dispersion and waveguide dispersion....
    21 KB (2,497 words) - 05:48, 23 May 2025
  • \sigma } is the temporal growth rate of the disturbance, then the dispersion relation is given by σ S L k = r r + 1 ( 1 + r 2 − 1 r − 1 ) {\displaystyle...
    10 KB (1,690 words) - 17:42, 15 June 2025
  • Thumbnail for Jewish diaspora
    The Jewish diaspora (Hebrew: גוֹלָה gōlā), alternatively the dispersion (תְּפוּצָה təfūṣā) or the exile (גָּלוּת gālūṯ; Yiddish: גלות gōləs), consists...
    144 KB (16,976 words) - 11:36, 1 July 2025
  • Thumbnail for Rashba–Edelstein effect
    polarization to be locked to the momentum in each branch of the dispersion relation. If a charge current flows in these spin-polarized surface states...
    25 KB (2,878 words) - 14:09, 6 July 2025
  • Thumbnail for Refractive index
    Refractive index (category CS1 German-language sources (de))
    the phase velocity. When the dispersion is small, the group velocity can be linked to the phase velocity by the relation: 22  v g = v − λ d v d λ , {\displaystyle...
    82 KB (9,202 words) - 19:42, 22 June 2025
  • Particle in a one-dimensional lattice (category CS1 German-language sources (de))
    \arccos } of both sides. Thus, the expression gives rise to the dispersion relation. The right hand side of the last expression above can sometimes be...
    18 KB (3,625 words) - 19:16, 25 May 2025
  • physics and engineering, a constitutive equation or constitutive relation is a relation between two or more physical quantities (especially kinetic quantities...
    39 KB (3,594 words) - 20:31, 10 April 2025
  • presence of doublers is also reflected in the fermion dispersion relation. Since this is a relation between the energy ω {\displaystyle \omega } of the...
    25 KB (3,446 words) - 18:06, 23 May 2025
  • the periodicity of the dispersion relation and the division of k-space in Brillouin zones. The periodic energy dispersion relation is expressed as: E n...
    8 KB (1,098 words) - 15:25, 13 January 2024
  • Thumbnail for Forouhi–Bloomer model
    materials at energies near and greater than their optical band gap. The dispersion relation bears the names of Rahim Forouhi and Iris Bloomer, who created the...
    11 KB (1,130 words) - 20:29, 22 May 2025
  • Thumbnail for Rainbow
    is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light...
    82 KB (9,299 words) - 13:48, 25 June 2025
  • Thumbnail for Dielectric
    change of susceptibility with respect to frequency characterises the dispersion properties of the material. Moreover, the fact that the polarisation can...
    37 KB (4,775 words) - 01:49, 26 May 2025
  • Density functional theory (category CS1 German-language sources (de))
    treatment of systems which are dominated by dispersion (e.g. interacting noble gas atoms) or where dispersion competes significantly with other effects...
    80 KB (10,626 words) - 17:26, 23 June 2025
  • and A. M. Kosevich. "On the theory of the De Haas–Van Alphen effect for particles with an arbitrary dispersion law." Dokl. Akad. Nauk SSSR. Vol. 96. 1954...
    10 KB (1,208 words) - 18:02, 25 May 2025
  • Thumbnail for Surface plasmon polariton
    Surface plasmon polariton (category CS1 German-language sources (de))
    free-space. The dispersion relation is plotted in Figure 3. At low k, the SPP behaves like a photon, but as k increases, the dispersion relation bends over...
    39 KB (5,113 words) - 17:06, 8 June 2025