For example, one could perform quantum cryptography with an entangled photon pair or an entangled pair of atomic nuclei or even a photon and a nucleus entangled together.

• 例如，我们可以用一对缠结光子，也可以用一对缠结原子核，甚至是缠结在一起的一个光子与一个原子核，来执行量子密码学的工作。