“School of Physic”
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| Paper IPM / Physic / 6667 |
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| Abstract: | |||||
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We find a general expression for the free energy of G(ϕ) = ϕ2k generalized 2D Yang-Mills theories in the strong
(A > Ac) region at large N. We also show that in this region, the
density function of Young tableau of these models is a three-cut problem.
In the specific ϕ6 model, we show that the theory has a
third order phase transition, like ϕ2 (YM2) and ϕ4
models. We have some comments for k ≥ 4 cases. At the end,
we study the phase structure of ϕ2+gϕ4 model
for g ≤ [(A)/4] region.
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