Method proposed to achieve quantum remote control

Peng Jia-yin

You-Bang Zhan, Xiaowei Li, Peng-Cheng Ma +1 more

We present two protocols for the controlled remote implementation of quantum operations between three-party high-dimensional systems. Firstly, the controlled teleportation of an arbitrary unitary operation by bidirectional quantum state teleportaion (BQST) with high-dimensional systems is considered. Then, instead of using the BQST method, a protocol for controlled remote implementation of partially unknown operations belonging to some restricted sets in high-dimensional systems is proposed. It is shown that, in these protocols, if and only if the controller would like to help the sender with the remote operations, the controlled remote implementation of quantum operations for high-dimensional systems can be completed.

Meiyu Wang, Hao Guo

Zhengkai Sun

We present new controlled remote implementation of operations (CRIO) protocols based on graph states, which allow two controllers to jointly govern remote quantum operation exp [𝑖𝛼𝜎n]. Two protocols, CRIO in quartet and six-partite, are introduced in this paper. The first protocol contains two controllers, a sender and a receiver, the second protocol allows two pairs of sender and receiver to implement the remote operations only with the permission of both controllers. Our approach improves security control at the cost of requiring more entanglement resources than previous methods. All the implementation can be achieved by using local operation and classical communication (LOCC). These protocols contribute to multi-controller quantum networks and need future optimizations enhance the experimental feasibility.

Julian Juhi-Lian Ting

Xi‐Feng Ren, Guo‐Ping Guo, Pei Zhang +3 more

For pairs of entangled photons, each seems to know about the state of the other. Using this property of quantum entanglement, we can remotely control the extraordinary optical transmission through subwavelength holes in a metal plate. Our method can also be used for entanglement distillation.