  We discuss the effect of rapid rotation on the phase diagram of hadronic
matter. The energy dispersion relation is shifted by an effective chemical
potential induced by rotation. This suggests that rotation should lower the
critical temperature of chiral restoration, but it is still controversial how
the deconfinement temperature should change as a function of angular velocity.
We adopt the hadron resonance gas model as an approach free from fitting
parameters. We identify the deconfinement from the thermodynamic behavior and
find that rotation decreases the deconfinement temperature. We also discuss the
spatial inhomogeneity of the pressure and give a semi-quantitative estimate of
the moment of inertia.
