Quantum entanglement meets machine learning
Entanglement is one of the key features of quantum mechanics, which allows two or more parties to be correlated in a way that is much stronger than they can be in any classical way. Entanglement also plays an important role in many quantum information processing tasks such as teleportation, quantum key distribution, and quantum computing. However, to determine whether a quantum system is entangled or not is challenging, which is in general an NP-hard problem.