Chew-Low Formalism for Two Interactions

Formalism for interactions: Feynman diagrams

Combining Two Formalism for Reasoning about Concepts

There are two major formalisms that are developed around concepts. The first one is Formal Concept Analysis (FCA) by R. Wille and B. Ganter. Roughly speaking, FCA is an extension of algebraic Lattice Theory for knowledge representation. The second formalism, Description Logic (DL), goes back to the universal terminological logic by P.F. Patel-Schneider. It is closely related to modal and progra...

Eulerian formalism of linear beam-wave interactions.

The Two-state Vector Formalism

The two-state vector formalism (TSVF) [1] is a time-symmetric description of the standard quantum mechanics originated in Aharonov, Bergmann and Lebowitz [2]. The TSVF describes a quantum system at a particular time by two quantum states: the usual one, evolving forward in time, defined by the results of a complete measurement at the earlier time, and by the quantum state evolving backward in t...

CGC formalism with two sources

In this work we extend the JIMWLK formalism to the two–source problem. The S–matrix for the forward scattering can be written in a double functional integral representation which involves the usual functional integral for the gluon field and the spin path integral for the external color sources. Modifications needed in the light–cone gauge are discussed. Using our source term we compute the pro...