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Multi-Instanton Effect in Two Dimensional QCD by Ochiai, Tetsuyuki is a scholarly article available to read on EtoBox.

What is Multi-Instanton Effect in Two Dimensional QCD about?

We analyze multi-instanton sector in two dimensional U(N) Yang-Mills theory on a sphere. We obtain a contour intregrals representation of the multi-instanton amplitude and find ``neutral'' configurations of the even number instantons are dominant in the large N limit. Using this representation, we calculate 1,2,3,4 bodies interactions and the free energies for $N =3,4,5$ numerically and find that in fact the multi-instanton interaction effect essentially contribute to the large N phase transition discovered by Douglas and Kazakov.

Author

Ochiai, Tetsuyuki

Published

1995

Language

EN