Cyclic Controlled Teleportation by Using a Seven-Qubit Entangled State

Abstract

We propose a scheme of cyclic controlled teleportation for three arbitrary single-qubit states by using a seven-qubit entangled state. In our scheme, Alice can teleport her single-qubit state of qubit a to Bob, Bob can teleport his single-qubit state of qubit b to Charlie and Charlie can also teleport his single-qubit state of qubit c to Alice via the control of the supervisor David.