High-capacity quantum secure direct communication based on quantum hyperdense coding with hyperentanglement

Abstract

We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the details for a quantum secure direct communication (QSDC) protocol based on this quantum hyperdense coding protocol. This QSDC protocol has the advantage of having a higher capacity than the quantum communication protocols with a qubit system. Compared with the QSDC protocol based on superdense coding with $d$-dimensional systems, this QSDC protocol is more feasible as the preparation of a high-dimension quantum system is more difficult than that of a two-level quantum system at present.

5 pages, 2 figure

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Cited by in corpus (5)

• The Evolution of Quantum Secure Direct Communication: On the Road to the Qinternet
• Photonic spatial Bell-state analysis for robust quantum secure direct communication using quantum dot-cavity systems
• Information leakage resistant quantum dialogue against collective noise
• Information leakage resistant quantum dialogue with single photons in both polarization and spatial-mode degrees of freedom
• Polarization-path-frequency entanglement using interferometry and frequency shifters