Author(s): Yitao Feng, Ryohei Kobayashi, Yu-An Chen, and Shinsei Ryu Higher-form symmetry in a tensor product Hilbert space is always emergent: The symmetry generators become genuinely topological only when the Gauss law is energetically enforced at low energies. In this Letter, we present a general method for defining the ’t Hooft anomaly of higher-form symmetries i… [Phys. Rev. Lett. 136, 046504] Published Tue Jan 27, 2026