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cond-mat.str-el2026
An Intrinsically Gapless Topological Phase with Dipole Symmetry
Amogh Anakru, Linhao Li, Zhen Bi
We show that the boundary fractionalization familiar from gapped topological insulators can enforce bulk gaplessness in a dipole-conserving system. In a one-dimensional fermion mod…
cond-mat.str-el2026
Matrix Product States for Modulated Symmetries: SPT, LSM, and Beyond
Amogh Anakru, Linhao Li, Sarvesh Srinivasan +1
Matrix product states (MPS) provide a powerful framework for characterizing one-dimensional symmetry-protected topological (SPT) phases of matter and for formulating Lieb-Schultz-M…