Prof. Dr. Dr. h.c. Frank Leymann: “Entanglement and the shifting of barriers”.

We recall the definition of entanglement (of qubits), discuss the comparability of entangled states as well as their frequency. The importance of entanglement for quantum computing is outlined. That entanglement helps to overcome limitations of classical algorithms is illustrated by the example of approximate algorithms and supervised learning. Finally, we move to “barren plateaus” and briefly show their significance.