Quiver_diagram
Quiver diagram
Diagrams describing the matter content
In theoretical physics, a quiver diagram is a graph representing the matter content of a gauge theory that describes D-branes on orbifolds. Quiver diagrams may also be used to described supersymmetric gauge theories in four dimensions.
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Each node of the graph corresponds to a factor U(N) of the gauge group, and each link represents a field in the bifundamental representation
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The relevance of quiver diagrams for string theory was pointed out and studied by Michael Douglas and Greg Moore.[1]
While string theorists use the words quiver diagram, many of their colleagues in particle physics call these diagrams mooses.