The accidental flatness constraint does not mean a wrong classical limit

We shed some light on the reason why the accidental flatness constraint appears in certain limits of the amplitudes of covariant loop quantum gravity. We show why this constraint is harmless, by displaying how analogous accidental constraints appear in transition amplitudes of simple systems, when certain limits are considered.

Automated summary

We shed light on the appearance of accidental flatness constraint in certain limits of covariant loop quantum gravity amplitudes and show that it is harmless by demonstrating its analogy to accidental constraints in transition amplitudes of simple systems.