there has been no discovery of quantum domain walls. It's possible that new developments have occurred since then. Quantum domain walls, if they exist, could have potential implications in various areas of quantum physics and computing. However, without further information on the specific nature and properties of these domain walls, it is challenging to comment on their relevance to quantum computing. It would be advisable to consult more recent scientific literature or academic research to obtain the most up-to-date information on this topic.