Hiding information in orthogonal product quantum states
Dexi Zhang, Xiaoyu Li · 2007
Abstract: This paper provide a quantum information hiding protocol using orthogonal product states. It is based on the non-locality of an complete orthogonal set of product states in a two-particle quantum system in which each particle has three states. Information is coded in a integral state of the two-particle system. Then the two particles are distributed to two persons who can only perform local operations and classical communications. So the origin information is hidden and it’s impossible for two persons to recover it. We show that our protocol is secure and give a detailed procedure to hide data in computers. Key–Words: Typing manuscripts, LATEX Quantum information science is field which inte-grates quantum physics with information science. It may provide surprising force for people to do things which are impossible in classical information science so far, such as decomposing a large number in polyno-mial time(Shor’s algorithm)[1] and so on. One of the most important applications of quantum information science is quantum cryptography. Quantum cryptog-