arXiv:quant-ph/9912103 · Journal of Mathematical Physics
Stationary quantum source coding
Dénes Petz, Milán Mosonyi
Abstract
In this article the quantum version of the source coding theorem is obtained for a completely ergodic source. This result extends Schumacher’s quantum noiseless coding theorem for memoryless sources. The control of the memory effects requires some earlier results of Hiai and Petz on high probability subspaces. Our result is equivalently considered as a compression theorem for noiseless stationary channels.