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arXiv · 1709.00299

Center phase transition from matter propagators in (scalar) QCD

M. Mitter·M. Hopfer·B. -J. Schaefer·R. Alkofer
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Abstract

Novel order parameters for the confinement-deconfinement phase transition of quenched QCD and fundamentally charged scalar QCD are presented. Similar to the well-known dual condensate, they are defined via generalized matter propagators with $U(1)$-valued boundary conditions. The order parameters are easily accessible with functional methods. Their validity and accessibility is explicitly demonstrated by numerical studies of the Dyson-Schwinger equations for the matter propagators. Even in the case of heavy scalar matter, where the propagator does not show a signature of the phase transition, a discontinuity due to the transition can be extracted in the order parameters, establishing also fundamentally charged scalar matter as a probe for color confinement.

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M. Mitter, M. Hopfer, B. -J. Schaefer, R. Alkofer. 2017-09-01. Center phase transition from matter propagators in (scalar) QCD. https://doi.org/10.1016/j.physletb.2017.12.019

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