TY - RPRT TI - Counting topological interface modes using simplicial characteristic classes AU - Bohlsen, N. [Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States)] (ORCID:0009000833380683) AU - Dodin, I. Y. [Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States)] (ORCID:0000000302436257) AU - Qin, H. [Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States)] (ORCID:0000000303043762) PY - 2026 DO - 10.1088/1367-2630/ae384d UR - https://www.osti.gov/biblio/3016234 ID - 3016234 ER -