Report summary

Pennsylvania State University Department of Physics in 2015-2026 reads as a 111-PI network with 156 internal PI collaborations. The dominant subject mix is Physics and Astronomy as the leading field (49% of slots across 84 PIs; 84 labels), Atomic and Molecular Physics, and Optics as the leading subfield (15% of slots across 36 PIs; 36 labels), and Astrophysics and Cosmic Phenomena as the leading topic (5% of slots across 17 PIs; 17 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 24 PIs across distinct clusters. The leading PI names are Adri C. T. van Duin (107.3 weighted works; Graphene research and applications, 2D Materials and Applications); Mauricio Terrones (79.9 weighted works; 2D Materials and Applications, Graphene research and applications). The most visible ties are Cui‐Zu Chang and Moses H. W. Chan (29 shared works, weight 15.9). The leading breakdown groups are group 1 with 10 PIs, 21 internal connections, weight 38.4, around Nuclear and High Energy Physics, Astronomy and Astrophysics, Computational Mechanics, led by Kohta Murase, Shigeo S. Kimura, Mainak Mukhopadhyay; group 2 with 9 PIs, 8 internal connections, weight 46.3, around Materials Chemistry, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, led by Adri C. T. van Duin, Venkatraman Gopalan, Thomas E. Mallouk.