Multiparty quantum communication using multiqubit entanglement and teleportation

Shohini Ghose, Atul Kumar, Vaibhav Madhok, A. M. Hamel

Published 2013-03-25, updated 2013-07-23Version 3

We propose a 2N qubit entangled channel that can be used to teleport N qubits in a network to a single receiver. We describe the construction of this channel and explicitly demonstrate how the protocol works. The protocol is different from teleportation using $N$ Bell pairs shared between $N$ senders and a single receiver, as it ensures that all parties have to participate in order for the teleportation to be successful. This can be advantageous in various scenarios and we discuss potential application of this protocol to voting.