Update README.md

README.md

@@ -26,4 +26,17 @@ Use the download script in the Pixie repository to automatically download this d
 python scripts/download_data.py
 ```
 
-For a full pipeline usage, refer to the [Github repository's usage section](https://github.com/vlongle/pixie#usage).
+For a full pipeline usage, refer to the [Github repository's usage section](https://github.com/vlongle/pixie#usage).
+
+## Citation
+
+If you find this work useful, please consider citing:
+
+```bibtex
+@article{le2025pixie,
+  title={Pixie: Fast and Generalizable Supervised Learning of 3D Physics from Pixels},
+  author={Le, Long and Lucas, Ryan and Wang, Chen and Chen, Chuhao and Jayaraman, Dinesh and Eaton, Eric and Liu, Lingjie},
+  journal={arXiv preprint arXiv:2508.17437},
+  year={2025}
+}
+```