Speaker
Owe Philipsen
(University of Frankfurt)
Description
We present unambiguous evidence from lattice simulations of QCD with three degenerate
quark species for two tricritical points in the $(T,m)$ phase diagramat fixed imaginary $\mu/T=i\pi/3$
mod $2\pi/3$,
one in the light and one in the heavy mass regime. They represent the boundaries of the chiral and deconfinement critical lines continued to imaginary chemical potential, respectively.
It is demonstrated that the shape of the deconfinement critical line for real chemical potentials is dictated
by tricritical scaling and implies the weakening of the deconfinementtransition with real chemical
potential. The generalization to non-degenerate and light quark masses is discussed.
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Primary author
Owe Philipsen
(University of Frankfurt)
Co-author
Prof.
Philippe de Forcrand
(ETH Zürich)
