Deconfinement Phase Transition in Hot and Dense QCD at Large N

Details Deconfinement Phase Transition in Hot and Dense QCD at Large N Deconfinement Phase Transition in Hot and Dense QCD at Large N

2009-08-25

arxiv.org/abs/0908.3524v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at the Workshop honoring 60th anniversary of Misha Shifman

Scientific paper

We conjecture that the confinement- deconfinement phase transition in QCD at large number of colors $N$ and $N_f\ll N$ at $T\neq 0$ and $\mu\neq 0$ is triggered by the drastic change in $\theta$ behavior. The conjecture is motivated by the holographic model of QCD where confinement -deconfinement phase transition indeed happens precisely at $T=T_c$ where $\theta$ dependence experiences a sudden change in behavior. The conjecture is also supported by quantum field theory arguments when the instanton calculations (which trigger the $\theta$ dependence) are under complete theoretical control for $T>T_c$, suddenly break down immediately below $T

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