Report summary

The 2018-2020 picture for University of California, Irvine Department of Physics and Astronomy is a 34-PI network with 14 internal PI collaborations. The main research signal is Physics and Astronomy as the leading field (51% of slots across 27 PIs; 27 labels), Nuclear and High Energy Physics as the leading subfield (23% of slots across 17 PIs; 17 labels), and Dark Matter and Cosmic Phenomena as the leading topic (7% of slots across 7 PIs; 7 labels). That is a thin collaboration pattern, useful for spotting individual pairs but less persuasive as a broad departmental network. The leading PI names are Xiaoqing Pan (33.8 weighted works; Ferroelectric and Piezoelectric Materials, Multiferroics and related materials). The clearest collaboration lines are Xiaoqing Pan and Ruqian Wu (10 shared works, weight 5). The leading breakdown groups are group 1 with 5 PIs, 5 internal connections, weight 4.7, around Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, led by Zuzanna S. Siwy, F. Dollar, T. Tajima.