@article{towardsprivacypreservingfederatedpromptt,
  title = {Towards Privacy-Preserving Federated Prompt Tuning under Data Heterogeneity: A Subspace-Decomposed Expert Approach},
  author = {Yuhua Wang and Xiaodong Li and Yihao Guo and Yuxiang Jia and Qinnan Zhang and Yifan Sun and Hainan Zhang and Yongxin Tong and Zhiming Zheng},
  year = {2026},
  eprint = {2607.21417},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.21417},
}