@article{causaloptimalcouplingforgaussianinputout,
  title = {Causal Optimal Coupling for Gaussian Input-Output Distributional Data},
  author = {Daran Xu and Amirhossein Taghvaei},
  year = {2026},
  eprint = {2604.01406},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.01406},
}