Bidirectional quantum teleportation of an arbitrary number of qubits over noisy channel

This study presents a bidirectional quantum teleportation of two quantum states with an arbitrary number of qubits, n, for the first time. This protocol utilizes a particular state with 4 n qubits as a quantum channel. The required operators include CNOT, Paulis and single-qubit measurements. In this paper, we also present a comprehensive noise analysis for the proposed protocol.