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For Duke University Department of Physics in 2024-2026, the graph shows 18 visible PIs and 3 internal PI collaborations. The dominant subject mix is Physics and Astronomy as the leading field (45% of slots across 15 PIs; 15 labels), Atomic and Molecular Physics, and Optics as the leading subfield (17% of slots across 6 PIs; 6 labels), and Particle physics theoretical and experimental studies as the leading topic (9% of slots across 5 PIs; 5 labels). That looks relatively sparse, so claims about department-wide cohesion should be made carefully. The top weighted PIs are Ehsan Samei (10.1 weighted works; Advanced X-ray and CT Imaging, Medical Imaging Techniques and Applications). The most visible ties are Sara Haravifard and Lalit Yadav (4 shared works, weight 2.6). The standout breakdown groups are group 1 with 2 PIs, 1 internal connections, weight 2.6, around Materials Chemistry, Condensed Matter Physics, Computational Theory and Mathematics, led by Lalit Yadav, Sara Haravifard.