On the existence of a first order phase transition at small vacuum angle $θ$ in the $CP^3$ model

Details On the existence of a first order phase transition at small vacuum angle $θ$ in the $CP^3$ model On the existence of a first order phase transition at small vacuum angle $θ$ in the $CP^3$ model

1993-12-03

arxiv.org/abs/hep-lat/9312019v1

Nucl.Phys.Proc.Suppl.34:709-711,1994

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, DESY 93-177, talk presented by G. Schierholz at Lattice93

Scientific paper

10.1016/0920-5632(94)90490-1

We examine the phase structure of the $CP^3$ model as a function of $\theta$
in the weak coupling regime. It is shown that the model has a first order phase
transition at small $\theta$. We pay special attention to the extrapolation of
the data to the infinite volume. It is found that the critical value of
$\theta$ decreases towards zero as $\beta$ is taken to infinity.

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