Report summary

Columbia University Plasma Physics in 2015-2026 reads as a 1-PI network with 0 internal PI collaborations. The dominant subject mix is Engineering as the leading field (50% of slots across 1 PIs; 1 labels), Aerospace Engineering as the leading subfield (50% of slots across 1 PIs; 1 labels), and Laser-Plasma Interactions and Diagnostics as the leading topic (33% of slots across 1 PIs; 1 labels). That lack of internal edges is worrying: the PI list may still be useful, but the graph does not support a claim of departmental cohesion. The leading PI names are Jacob M. Halpern (2.1 weighted works; Magnetic confinement fusion research, Laser-Plasma Interactions and Diagnostics). No internal PI-to-PI collaboration edge is visible in this period. No multi-PI collaboration group is visible in this period, a concerning sign if the department expects a connected internal network.