@article{zeroshotdetectionofllmgeneratedtextviaim,
  title = {Zero-Shot Detection of LLM-Generated Text via Implicit Reward Model},
  author = {Runheng Liu and Heyan Huang and Xingchen Xiao and Zhijing Wu},
  year = {2026},
  eprint = {2604.21223},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.21223},
}