Accelerating stochastic gravitational wave backgrounds parameter estimation in pulsar timing arrays with flow matching. - Liang, Bo; Liu, Chang; Zhao, Tianyu; Du, Minghui; Liang, Manjia; Shi, Ruijun; Guo, Hong; Xu, Yuxiang; Qiang, Li-e; Xu, Peng; Qian, Wei-Liang; Luo, Ziren (Physics Letters B, 2026)