Results 141 to 150 of about 700,670 (248)

Asymptotic Estimates of Feynman Diagrams

Physics Letters B, 1977
We derive asymptotic estimates for the most likely value of generical very high order Feynman diagram.
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Extracting quadratic propagators by refined graphic rule

Journal of High Energy Physics
One-loop integrands in Cachazo-He-Yuan (CHY) formula, which is based on the forward limit of tree-level amplitudes, involves linear propagators that are different from quadratic ones in traditional Feynman diagrams.
Chongsi Xie, Yi-Jian Du
doaj   +1 more source

Landau-based Schubert analysis

Journal of High Energy Physics
We revisit the conjectural method called Schubert analysis for generating the alphabet of symbol letters for Feynman integrals, which was based on geometries of intersecting lines associated with corresponding cut diagrams.
Song He, Xuhang Jiang, Jiahao Liu, Qinglin Yang   +3 more
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Feynman Diagrams in Algebraic Combinatorics

, 2002
13 ...
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Computation kernel for Feynman diagrams

Physical Review B
11 pages, 3 ...
Daria Gazizova, Rayan Farid, B. D. E. McNiven, I. Assi, Ethan G. Armstrong, J. P. F. LeBlanc   +5 more
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Feynman Diagrams beyond Physics: From Biology to Economy

Mathematics
Feynman diagrams represent one of the most powerful and fascinating tools developed in theoretical physics in the last century. Introduced within the framework of quantum electrodynamics as a suitable method for computing the amplitude of a physical ...
Nicolò Cangiotti
doaj   +1 more source

A note on the non-planar corrections for the Page curve in the PSSY model via the IOP matrix model correspondence

Journal of High Energy Physics
We develop a correspondence between the PSSY model and the IOP matrix model by comparing their Schwinger-Dyson equations, Feynman diagrams, and parameters. Applying this correspondence, we resum specific non-planar diagrams involving crossing in the PSSY
Norihiro Iizuka, Mitsuhiro Nishida
doaj   +1 more source

On the Four-Color-Map Theorem

, 2003
Coloring planar Feynman diagrams in spinor quantum electrodynamics, is a non trivial model soluble without computer.
Petermann, A.
core  

Phi4tools: compilation of Feynman diagrams for Landau-Ginzburg-Wilson theories

Journal of High Energy Physics
Scalar field theories with quartic interactions are of central interest in the study of second-order phase transitions. For three-dimensional theories, numerous studies make use of the fixed-dimensional perturbative computation of [B. Nickel, D.
Giacomo Sberveglieri, Gabriele Spada
doaj   +1 more source

Classical theories of gravity produce entanglement. [PDF]

Nature
Aziz J, Howl R.
europepmc   +1 more source