A Simple and Novel Quantum Money Public-key Cryptosystem

This paper proposes a scheme of quantum money public-key cryptosystem which can be used in the encryption and decryption of a series of known quantum states and classical information. The private key, a set of unitary transformations, is prepared by individuals. Meanwhile, they announce the public key which is a series of quantum states generated by performing the unitary transformations on the ground states. In the process of encryption and decryption, some suitable transformations will be taken. By this way, the attacker cannot benefit from those quantum states if they know nothing about the private key. In one word, it is safer than traditional encryption technology.