@inproceedings{pankratov-alistarh-2026-speculative, title = "Speculative Decoding Speed-of-Light: Optimal Lower Bounds via Branching Random Walks", author = "Pankratov, Sergey and Alistarh, Dan", editor = "Demberg, Vera and Inui, Kentaro and Marquez, Llu{\'i}s", booktitle = "Proceedings of the 19th Conference of the {E}uropean Chapter of the {A}ssociation for {C}omputational {L}inguistics (Volume 1: Long Papers)", month = mar, year = "2026", address = "Rabat, Morocco", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-eacl/2026.eacl-long.301/", pages = "6404--6418", ISBN = "979-8-89176-380-7" }