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arXiv · 1206.6582

Thermodynamic instabilities in dynamical quark models with complex conjugate mass poles

Sanjin Benić·David Blaschke·Michael Buballa
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Abstract

We show that the CJT thermodynamic potential of dynamical quark models with a quark propagator represented by complex conjugate mass poles inevitably exhibits thermodynamic instabilities. We find that the minimal coupling of the quark sector to a Polyakov loop potential can strongly suppress but not completely remove such instabilities. This general effect is explicitly demonstrated in the framework of a covariant, chirally symmetric, effective quark model.

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Sanjin Benić, David Blaschke, Michael Buballa. 2012-07-18. Thermodynamic instabilities in dynamical quark models with complex conjugate mass poles. https://doi.org/10.1103/physrevd.86.074002

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