POLAR-PIC: A Holistic Framework for Matrixized PIC with Co-Designed Compute, Layout, and Communication. - Yizhuo Rao; Xingjian Cui; Shangzhi Pang; Jiabin Xie; Guangnan Feng; Jinhui Wei; Ziyan Zhang; Languang Gao; Zhenyu Wang; Zhiguang Chen 001; Yutong Lu (CoRR, 2026)