## Polar Codes for Quantum Channel Discrimination

Statistical discrimination of quantum channels is a crucial part of many protocols in quantum

communication and quantum cryptography. Several paths to improve channel discrimination

exist in the literature. However, there is much to be done in the avenue of optimizing channel

discrimination using classical codes. At least two open questions can be pointed out:

how to construct low complexity encoding schemes that are interesting for channel discrimination and,

more importantly, how to develop capacity-achieving protocols.