Yuqi Bai Tianyu Huang Kun Sun Yuting Chen Scaling Law in LLM Simulated Personality: More Detailed and Realistic Persona Profile Is All You Need. 2025 October abs/2510.11734 CoRR https://doi.org/10.48550/arXiv.2510.11734 db/journals/corr/corr2510.html#abs-2510-11734 streams/journals/corr