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In a qualitative study, the low-energy properties of the$\text{SO}\!\left(6\right)$-symmetric Quark-Meson-Diquark Model as an effectivemodel for two-color Quantum Chromodynamics are investigated within theFunctional Renormalization Group (FRG) approach. In particular, we compute theinfrared scaling behavior of fluctuation-induced higher-derivative couplings ofthe linear Quark-Meson-Diquark Model and map the resulting renormalizedeffective action onto its nonlinear counterpart. The higher-derivativecouplings of the nonlinear model, which we identify as the low-energy couplingsof the Quark-Meson-Diquark Model, are therefore entirely determined by the FRGflow of their linear equivalents. This grants full access to their scalingbehavior and provides insights into conceptual aspects of purely bosoniceffective models, as they are treated within the FRG. In this way, thepresented work is understood as an immediate extension of our recent advancesin the $\text{SO}\!\left(4\right)$-symmetric Quark-Meson Model beyond commonFRG approximations.

Fluctuation-induced higher-derivative couplings and infrared dynamics of the Quark-Meson-Diquark Model