Deconfinement transition line with the complex Langevin equation up to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>μ</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:mi>T</mml:mi><mml:mo>∼</mml:mo><mml:mn>5</mml:mn></mml:math>

Abstract

We study the deconfinement transition line in QCD for quark chemical potentials up to ${\ensuremath{\mu}}_{q}\ensuremath{\sim}5\text{ }\text{ }\mathrm{T}$ (${\ensuremath{\mu}}_{B}\ensuremath{\sim}15\text{ }\text{ }\mathrm{T}$). To circumvent the sign problem we use the complex Langevin equation with gauge cooling. The plaquette gauge action is used with two flavors of naive Wilson fermions at a relatively heavy pion mass of roughly 1.3 GeV. A quadratic dependence describes the transition line well on the whole chemical potential range.

Topics & Concepts