Author(s): Bruno Mera and Tomoki Ozawa We propose a microscopic, weak-coupling mechanism by which generic Chern bands asymptotically relax toward ideal bands. We consider coupling interacting electrons to a Caldeira-Leggett-like Ohmic bosonic bath. Using the Born-Markov approximation, we analytically show that, upon taking the leading or… [Phys. Rev. Lett. 137, 046601] Published Mon Jul 20, 2026