Asymmetric controlled cyclic quantum teleportation of two, three and four qubit states with optimal quantum resources

The present paper introduces a novel theoretical protocol using GHZ-state measurement to implement asymmetric controlled cyclic teleportation of two, three, and four-qubit states with significantly reduced quantum resource consumption. By utilizing a quantum channel of twenty qubits, the user Alice can transmit a 2-different two-qubit state to Bob, the user Bob can teleport 2-different three-qubit state to Charlie and further Charlie can transmit a four-qubit state to Alice under the controller David. GHZ-State measurement, Single-Qubit Measurement and Unitary operators are used to reconstruct the desired state. Compared with existing protocols in the literature, the proposed protocol is highly resource-efficient as it only utilizes a few GHZ-state measurements. The protocol's security has also been investigated and found to be secure.