Multiparty quantum communication using multiqubit entanglement and teleportation

TL;DR

This paper introduces a novel 2N qubit entangled channel enabling multiparty quantum teleportation to a single receiver, requiring all parties' participation, with potential applications in secure voting.

Contribution

It presents a new entangled channel construction for multiparty teleportation that differs from traditional methods and ensures collective participation.

Findings

The protocol successfully teleports N qubits using a 2N qubit entangled channel.

All parties must participate for successful teleportation.

Potential application in secure voting scenarios.

Abstract

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.