Quantum Teleportation And Remote State Preparation Based On Multiple Quantum Entangled States

Quantum technology based on the basic principles of quantum mechanics has great research value and prospects in the fields of information security such as national security,quantum communications,and financial institutions,and has gradually been applied in people's daily lives,becoming one of the focus areas of scientific research at home and abroad in recent years.In this paper,some feasible quantum teleportation and quantum remote state preparation schemes are proposed based on the multiple quantum entangled states.In the quantum teleportation scheme,two types of deterministic quantum teleportation are realized based on two different types of multiple quantum entangled states.First,we realized the controllable cyclic quantum teleportation of an arbitray two-qubit entangled state based on a ten-qubit quantum entangled state.According to the measurement results of the controller,all three senders can realize the quantum teleportation of an arbitray two-qubit entangled state.Secondly,we also use a five-qubit cluster state to realize the controllable teleportation of an arbitrary three-qubit entangled state.With the help of the controller,the receiver performs a unitary transformation and controllable NOT operation on its own qubits.The initial three-qubit entangled state can be reconstructed deterministically.In the scheme of quantum remote state preparation,we propose two different schemes.Using a nine-qubit entangled state as a quantum channel,we can complete an experimentally feasible two-qubit entangled state bidirectionally controllable remote state preparation.In the scheme,two receivers can simultaneously prepare an arbitrary two-qubit entangled state that they want with the help of the controller.Based on the two sets of five-qubit GHZ states,we also realized a controllable joint remote state preparation of an arbitrary six-qubit cluster-type state.According to the measurement results of the self-constructed two-qubit measurement base,the receiver can get the desired six-qubit cluster-type state.The success probability of these two remote state preparation schemes is 100%.