1111.1421 (Song Shu et al.)

The crossover of deconfinement by tunnelling in FL model    [PDF]

Song Shu, Jia-Rong Li

We have discussed the tunnelling effect in FL model. The tunnelling
coefficient is derived in the field configuration space by calculating the
transition amplitude using the path integral at SPA and the dilute instanton
gas approximation. By studying the tunnelling effect between the two
degenerating vacuums at the critical temperature and chemical potential, we
find that the system could be deconfined by tunnelling, which will change the
first order deconfinement phase transition to crossover. The $T-\mu$ phase
diagram of deconfinement with both first order phase transition and crossover
including CEP is presented.

View original: http://arxiv.org/abs/1111.1421