Unbounded length minimal synchronizing words for quantum channels over qutrits
arXiv:2603.00861
Abstract
Grudka, Karczewski, Kurzynski, Stempin, Wójcik and Wojcik (2025) constructed quantum channels with synchronizing words of length 3 for qutrits. We extend their result to arbitrarily long minimal synchronizing words, providing a contrast to Černý's conjecture for finite automata.
Quantum Communication, Networking and Computation (QCNC) 2026