@article{variationaltesttimeoptimizationfordiffus,
  title = {Variational Test-time Optimization for Diffusion Synchronization},
  author = {Hyunsoo Lee and Farrin Marouf Sofian and Kushagra Pandey and Stephan Mandt},
  year = {2026},
  eprint = {2606.15614},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.15614},
}