@article{systematizingllmpersonadesignafourquadra,
  title = {Systematizing LLM Persona Design: A Four-Quadrant Technical Taxonomy for AI Companion Applications},
  author = {Esther Sun and Zichu Wu},
  year = {2025},
  eprint = {2511.02979},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2511.02979},
}