Equivalence between entanglement of channel and measurement in quantum teleportation

Abstract

In this work, we analyze the concept of quantum bridge using Non-Maximally Entangled (NME) states. We propose two schemes for the quantum teleportation of an unknown qubit using an NME channel as a bridge between the sender and the receiver. We show that quantum channels and the measurements are equivalent in achieving the quantum teleportation only when the degree of entanglement is the maximum.