Report summary

University of Michigan–ann Arbor Department of Physics in 2015-2026 reads as a 98-PI network with 60 internal PI collaborations. The research center of gravity is Physics and Astronomy as the leading field (47% of slots across 75 PIs; 75 labels), Atomic and Molecular Physics, and Optics as the leading subfield (15% of slots across 30 PIs; 30 labels), and Particle physics theoretical and experimental studies as the leading topic (6% of slots across 18 PIs; 18 labels). Overall the pattern is balanced: there is enough structure to identify active groups, while the field mix still leaves room for multiple research identities. The most prominent PIs by weighted works are Stephen R. Forrest (75.8 weighted works; Organic Electronics and Photovoltaics, Conducting polymers and applications). The strongest pairings are Stephen R. Forrest and Yongxi Li (33 shared works, weight 22.6). The strongest breakdown groups are group 1 with 10 PIs, 12 internal connections, weight 73.9, around Atomic and Molecular Physics, and Optics, Materials Chemistry, Cellular and Molecular Neuroscience, led by Stephen R. Forrest, Steven T. Cundiff, Hui Deng; group 2 with 7 PIs, 7 internal connections, weight 15.1, around Materials Chemistry, Mechanical Engineering, Cell Biology, led by Kai Sun, Michał Żochowski, Xiaoming Mao.