Controlled Quantum Teleportation Schemes Using Generalized Bell Bases

摘要

In view of the problem that there is only one typical Bell basis for QT (Quantum Teleportation), three newGBBs (Generalized Bell Bases) are obtained by transforming unitarily the Hadamard gates with the methods of Pauligates in the quantum circuit of the traditional Bell basis, and four Bell bases have an identical general formula. Threecontrolled-QT schemes are proposed based on these GBBs. The changed processes of quantum entangled states duringQT in these schemes are derived by using the similar method of the traditional Bell basis. The result analyses of quantumstate collapses of controlled-QT show that more two-qubit quantum entanglement resources of Bell states can beavailable. These schemes can be considered as the beneficial supplements for current QT work with GBS (GeneralizedBell State).