Fine-Structure Constant From Sommerfeld to Feynmanfine-structure constantdimensionless physical constantshistory of mathematicsgolden ratiohistory of physicsmathematical constantsfundamental constantsThe fine-structure constant, which determines the strength of the electromagnetic interaction, is briefly reviewed ...
On the numerical value of α, the fine-structure constant, p. 129 [edit]Surely You're Joking, Mr. Feynman! (1985) A collection of reminiscences from taped interviews with fellow scientist and friend Ralph Leighton. ISBN 0393316041 I would see people building a bridge, or they'd be making ...
In quantum electrodynamics (QED) the small parameter is the fine-structure constant α ∼ 1/137. Since this is quite small, perturbation theory works very well for QED. For a physical quantity T(α), one computes (using Feynman diagrams) (3)T(α)=T0+αT1+α2T2+…. It is the case...
one needs a mechanism for the substitution for variables and simple expressions. Rational algebra need not be used, because denominators, if they occur, have a very simple structure, and can therefore be replaced by variables or expressions
The fine structure constant has mystified scientists since the 1800s– and might hold clues to the Grand Unified Theory: “Why the number 137 is one of the greatest mysteries in physics,” from Paul Ratner (@paulratnercodex) in @bigthink. * Leon M. Lederman, The God Particle: If the Un...
(1.6) amounts to a constant additive shift, which clearly has no influence on the leading terms in eqs. (1.4) and (1.5). In the following, we use P′ and H′ to compute fit coefficients, but we leave out the prime ′ to not clutter notation. The term "period" will always refer ...
mass shift for a one mode squeezed vacuum state is given by $\\delta m(\\Omega ,s)/m=\\alpha (2/\\pi )(\\Omega /m)^2\\sinh^2(s)$, where $\\Omega$ and $s$ stand for the mode frequency and the squeeze parameter and $\\alpha$ for the fine structure constant, respectively...
The fine-structure constant "a" is the single parameter of this model, measuring strength of the force between two electrons, because there are no unpaired elements in spacetime. At a molecular scale to avoid atomic constructive interference, at least one of a regular hexagon side in the first...
If there are no double poles, we construct a dlog integral by demanding that the LS are constant. • Second, if the scalar integral is not a dlog integral or if the number of MIs in this sector is bigger than one, we consider a general numerator ansatz and repeat the procedure of ...
mass shift for a one mode squeezed vacuum state is given by $\\delta m(\\Omega ,s)/m=\\alpha (2/\\pi )(\\Omega /m)^2\\sinh^2(s)$, where $\\Omega$ and $s$ stand for the mode frequency and the squeeze parameter and $\\alpha$ for the fine structure constant, respectively...