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Diagrammatic representation of scalar QCD and sign problem at nonzero chemical potential

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Bruckmann, Falk ; Wellnhofer, Jacob
Date of publication of this fulltext: 27 Apr 2018 09:07


We consider QCD at strong coupling with scalar quarks coupled to a chemical potential. Performing the link integrals we present a diagrammatic representation of the path integral weight. It is based on mesonic and baryonic building blocks, in close analogy to fermionic QCD. Likewise, the baryon loops are subject to a manifest conservation of the baryon number. The sign problem is expected to ...


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