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The use of the above diagram of the virtual particle producing a quark–antiquark pair was featured in the television sit-com The Big Bang Theory, in the episode "The Bat Jar Conjecture". PhD Comics of January 11, 2012, shows Feynman diagrams that visualize and describe quantum academic interactions , i.e. the paths followed by Ph.D. students ...
The Feynman–Kac formula, named after Richard Feynman and Mark Kac, establishes a link between parabolic partial differential equations and stochastic processes.In 1947, when Kac and Feynman were both faculty members at Cornell University, Kac attended a presentation of Feynman's and remarked that the two of them were working on the same thing from different directions. [1]
In quantum mechanics, superdeterminism is a loophole in Bell's theorem.By postulating that all systems being measured are correlated with the choices of which measurements to make on them, the assumptions of the theorem are no longer fulfilled.
The magnetic moment, also called magnetic dipole moment, is a measure of the strength of a magnetic source. The "Dirac" magnetic moment , corresponding to tree-level Feynman diagrams (which can be thought of as the classical result), can be calculated from the Dirac equation .
Once known as the "Weil conjecture". 2001: Mark Haiman: n! conjecture: representation theory: 2001: Daniel Frohardt and Kay Magaard [17] Guralnick–Thompson conjecture: monodromy groups: 2002: Preda Mihăilescu: Catalan's conjecture, 1844: exponential diophantine equations: ⇐Pillai's conjecture⇐abc conjecture Mihăilescu's theorem 2002
Theoretical chemistry requires quantities from core physics, such as time, volume, temperature, and pressure.But the highly quantitative nature of physical chemistry, in a more specialized way than core physics, uses molar amounts of substance rather than simply counting numbers; this leads to the specialized definitions in this article.
where is the Lebesgue measure on , is the canonical measure on the boundary of arising from its description as a moment polytope (if an edge of is given by a linear inequality () for some affine linear functional h on with integer coefficients, then =), and = (,) / (,). Additionally the norm of the test configuration can be given by
In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical reaction occurs. [1] A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction. The detailed steps of a reaction are not observable in most cases.