A model coupling the Barbero-Immirzi field to quintessence adds a second redshift-dependent term to gravitational-wave propagation, yielding bounds xi_BI<0.7 and xi_coup<0.13 from GWTC-3 data.
This work establishes GW propagation as a powerful probe of the interplay between quantum-gravity-inspired scalar fields and dark energy
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Dynamical Barbero--Immirzi field coupled to quintessence: gravitational-wave propagation constraints and next-generation forecasts
A model coupling the Barbero-Immirzi field to quintessence adds a second redshift-dependent term to gravitational-wave propagation, yielding bounds xi_BI<0.7 and xi_coup<0.13 from GWTC-3 data.