Quantum Two-Way Protocol Beyond Superdense Coding: Joint Transfer of Data and Entanglement

Abstract

In this article, we introduce a generalization of one-way superdense coding to two-way communication protocols for transmitting classical bits by using entangled quantum pairs. The proposed protocol jointly addresses the provision of entangled pairs and superdense coding, introducing an integrated approach for managing entanglement within the communication protocol. To assess the performance of the proposed protocol, we consider its data rate and resource usage, and we analyze this both in an ideal setting with no decoherence and in a more realistic setting where decoherence must be taken into account. In the ideal case, the proposal offers a 50% increase in both data rate and resource usage efficiency compared to conventional protocols. Even when decoherence is taken into consideration, the quantum protocol performs better as long as the decoherence time is not extremely short. Finally, we present the results of implementing the protocol in a computer simulation based on the NetSquid framework. We compare the simulation results with the theoretical values.

8 pages. Identical to published journal paper

References in corpus (17)

• Quantum Error Correction for Quantum Memories
• Sudden Death of Entanglement
• Energy Harvesting Wireless Communications: A Review of Recent Advances
• When Entanglement meets Classical Communications: Quantum Teleportation for the Quantum Internet (Invited Paper)
• NetSquid, a NETwork Simulator for QUantum Information using Discrete events
• Interactive Joint Transfer of Energy and Information
• Satellite-based Quantum Information Networks: Use cases, Architecture, and Roadmap
• Nondestructive detection of photonic qubits
• Sudden Death of Entanglement induced by Polarization Mode Dispersion
• Loss of polarization entanglement in a fiber-optic system with polarization mode dispersion in one optical path
• Two-way communication with a single quantum particle
• Nonlocal PMD compensation in the transmission of non-stationary streams of polarization entangled photons
• Interaction-free measurements by quantum Zeno stabilisation of ultracold atoms
• Tuning quantum channels to maximize polarization entanglement for telecom photon pairs
• Piggybacking on Quantum Streams
• Satellite-Terrestrial Quantum Networks and the Global Quantum Internet
• Carrying an arbitrarily large amount of information using a single quantum particle