Fitting momentum-coupled dark energy models to DESI DR2 and other data yields a negative coupling with no lower bound, but the coupling is degenerate with a field renormalization.
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Constraint on Momentum-coupled Dark Energy using DESI DR2
Fitting momentum-coupled dark energy models to DESI DR2 and other data yields a negative coupling with no lower bound, but the coupling is degenerate with a field renormalization.