Addressing a device in a quantum network: A quantum approach including routing

TL;DR

This paper introduces a quantum addressing scheme for networks that uses quantum states to eliminate classical communication of addresses and operations, enabling novel routing and superposition of network tasks.

Contribution

It proposes a quantum-based addressing method that leverages entanglement for routing and task execution, advancing quantum network protocols.

Findings

Quantum addresses remove classical communication needs.

Entanglement enables overlaying different network states.

Quantum addressing is equivalent to performing tasks in superposition.

Abstract

In this work we propose an addressing scheme for quantum networks which relies on quantum states held by devices. Quantum network devices use their address state together with a request state that encodes the tasks to be executed. Our approach not only removes the necessity to classically communicate addresses, but also the need to communicate the operations a device must apply. It turns out that utilizing entanglement to encode addresses of devices in a quantum network leads to interesting applications such as overlaying different network states. We present a distributed quantum routing protocol using entanglement that coherently selects a route in a network of Bell-states for controlled-teleportation and lastly we prove that addressing using quantum states is equivalent to performing tasks in superposition in a quantum network.