Report summary

The 2015-2026 picture for Boston University Department of Physics is a 62-PI network with 36 internal PI collaborations. The main research signal is Physics and Astronomy as the leading field (34% of slots across 39 PIs; 39 labels), Atomic and Molecular Physics, and Optics as the leading subfield (14% of slots across 20 PIs; 20 labels), and Quantum many-body systems as the leading topic (4% of slots across 8 PIs; 8 labels). This is a solid, readable collaboration map: group-level fit matters more than a single department-wide label. The leading PI names are Ji‐Xin Cheng (88.8 weighted works; Spectroscopy Techniques in Biomedical and Chemical Research, Photoacoustic and Ultrasonic Imaging). The clearest collaboration lines are H. Eugene Stanley and Lidia A. Braunstein (12 shared works, weight 6.2). The leading breakdown groups are group 1 with 10 PIs, 10 internal connections, weight 13.9, around Biomedical Engineering, Atomic and Molecular Physics, and Optics, Biophysics, led by Ji‐Xin Cheng, Qiang Cui, Björn M. Reinhard.