• In mathematical physics, the WKB approximation or WKB method is a technique for finding approximate solutions to linear differential equations with spatially...
    39 KB (6,860 words) - 22:43, 25 May 2025
  • offer approximate solutions that are easier to compute, such as the WKB approximation. The Schrödinger equation was published in 1926. The first person...
    51 KB (6,491 words) - 21:36, 20 May 2025
  • In physics, the supersymmetric WKB (SWKB) approximation is an extension of the WKB approximation that uses principles from supersymmetric quantum mechanics...
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  • Thumbnail for Transmission coefficient
    sample calculations, see rectangular potential barrier. Using the WKB approximation, one can obtain a tunnelling coefficient that looks like T = exp ⁡...
    8 KB (1,230 words) - 13:47, 26 September 2024
  • in the eikonal approximation in quantum mechanics are very closely related to the WKB approximation for one-dimensional waves. The WKB method, like the...
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  • Thumbnail for Instanton
    semi-classical approximation of the path-integral formulation in Euclidean time. We will first see this by using the WKB approximation that approximately...
    39 KB (6,385 words) - 04:27, 25 May 2025
  • electromagnetism are neglected entirely. Less extreme approximations include, the WKB approximation, physical optics, the geometric theory of diffraction...
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  • The WKB approximation is a method for solving equations in applied mathematics. WKB may also refer to: Warracknabeal Airport (IATA: WKB), in Warracknabeal...
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  • Often, this is approached through "quasi-classical" techniques (cf. WKB approximation). More rigorously, the mathematical operation involved in classical...
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  • Ernest Langer, is a correction to the WKB approximation for problems with radial symmetry. When applying WKB approximation method to the radial Schrödinger...
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  • Thumbnail for Léon Brillouin
    developed what is known as the Wentzel–Kramers–Brillouin approximation, also known as the WKB method, classical approach, and phase integral method. In...
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  • applications of the stationary phase method to the multidimensional WKB approximation in quantum mechanics (as well as in optics), Ind is related to the...
    31 KB (5,062 words) - 13:43, 22 April 2025
  • usual conditions required for the SVEA validity. Ultrashort pulse WKB approximation Arecchi, F.; Bonifacio, R. (1965). "Theory of optical maser amplifiers"...
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  • solve quantum mechanical problems, providing useful extensions to the WKB approximation, and statistical mechanics. Understanding the consequences of supersymmetry...
    16 KB (3,017 words) - 05:47, 26 May 2025
  • tunneling models using the Wentzel-Kramers Brillouin (WKB) approximation are useful. In the WKB theory, the tunneling current is predicted to be where...
    26 KB (3,643 words) - 14:31, 24 May 2025
  • Thumbnail for Schottky barrier
    density can be expressed, for a triangular shaped barrier (considering WKB approximation) as:[citation needed] J T n , p = q 3 E 2 16 π 2 ℏ Φ B n , p e − 4...
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  • solutions are obtained using techniques like variational methods and WKB approximation. It is also common to treat a problem of interest as a small modification...
    75 KB (10,263 words) - 07:44, 1 June 2025
  • derived from Einstein's equations and the Maxwell Lagrangian using a WKB approximation, cf. Ehlers 1973, sec. 5 Blanchet 2006, sec. 1.3 Rindler 2001, sec...
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  • systems, one usually turns to other approximation schemes, such as the variational method and the WKB approximation. This is because there is no analogue...
    70 KB (15,991 words) - 17:43, 25 May 2025
  • coefficients singlet state and triplet state adiabatic approximation Born–Oppenheimer approximation WKB approximation time-dependent perturbation theory time-independent...
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  • concept of semiclassical physics, beginning with the development of WKB approximation used in descriptions of quantum tunneling for example.: 231  While...
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    the action of the trajectory through a potential barrier. Using the WKB approximation, the tunneling rate (Γ) can be determined to be of the form Γ = A...
    86 KB (14,277 words) - 08:57, 19 May 2025
  • are determined by a set of boundary conditions. According to the WKB approximation, the probability for a particle to tunnel is inversely proportional...
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  • potential. In this case, the solution of field equation can be deduced by WKB approximation. ϕ ( t ) ≅ ϕ 1 a 1 ( t ) a ( t ) 3 / 2 c o s ( ∫ t 1 t m ( t ) d t...
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  • of these include the method of matched asymptotic expansions and WKB approximation for spatial problems, and in time, the Poincaré–Lindstedt method,...
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  • the Schrödinger equation by using the Wentzel-Kramers-Brillouin (WKB) approximation, and Wigner-Seitz (WS) spheres. Their model is heavily simplified...
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  • Thumbnail for David Bohm
    realization that the WKB approximation of quantum mechanics leads to deterministic equations and convinced that a mere approximation could not turn a probabilistic...
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  • Thumbnail for Harold Jeffreys
    work, so Jeffreys is often neglected when credit is given for the WKB approximation. Jeffreys received the Gold Medal of the Royal Astronomical Society...
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  • Neitzke, Andrew (2013). "Wall-crossing, Hitchin systems, and the WKB approximation". Advances in Mathematics. 234: 239–403. arXiv:0907.3987. doi:10.1016/j...
    62 KB (7,721 words) - 19:26, 23 May 2025
  • logarithm, with base 10 Liouville–Green method, another name for the WKB approximation Lymphomatoid granulomatosis, a very rare lymphoproliferative disorder...
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