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In a quantum network, it often occurs that there are many remote nodes which should collaborate with each to perform unitary operations. Most of the time, it can be addressed by bi-direction quantum teleportation. However, it often consumes too much quantum resources. In this paper, we propose an efficient scheme for implementation of remote control of some restricted sets of multi-qudit unitary operation...
In this paper, we develop an efficient and economic scheme in distributing quantum information scenario for remote partners via the control of many agents that are constrained by limited resources in a quantum communication network. Within such a network, quantum information is composed of multiple independent multi-qudit states, although each controlling agent is assigned only one controlling qudit,...
We develop an innovative and efficient scheme to share an arbitrary multi-qubit state between n agents via only one GHZ channel under control of m agents in a network. Compared with existing ones in this literature, our scheme involves less qubits, only single-qubit measurements, Bell-basis measurement and CNOT gate operations and thus exhibits a higher overall efficiency.
We present a systematic scheme for deterministic teleportation in a quantum switch network based on probabilistic communication channels. In this scheme, the burden of terminal agents originally caused by the introduction of auxiliary qubits and the operations of high dimensional unitary gates could be released. In such a way, our scheme will bring great convenience to realize deterministic teleportation...
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