Bidirectional Controlled Teleportation of Two-qubit and Three-qubit State via Nine-qubit Entangled State
Issue: 2022 - Volume 26 [Issue 1]
Jinwei Wang *
School of Mathematics and Statistics, Guizhou University of Finance and Economics, Guiyang, 550025, China.
*Author to whom correspondence should be addressed.
In this paper, a bidirectional controlled quantum teleportation via a nine-qubit entangled state is given. In this scheme, Alice wants to teleport a two-qubit entangled state to Bob and Bob wants to teleport arbitrary three-qubit state to Alice at the same time. The quantum teleportation is supervised by a controller. We firstly product a nine-qubit entangled states by the states |000000000⟩, and then we use this entangled states as quantum channel to transfer quantum information along three nodes. This scheme is efficient and economical because the intrinsic efficiency reaches 5/19.
Keywords: Bidirectional controlled teleportation, nine-qubit entangled state, Bell-base measurement, Single-qubit measurement