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- Title
High-capacity quantum secure direct communication using hyper-entanglement of photonic qubits.
- Authors
Cai, Jiarui; Pan, Ziwen; Wang, Tie-Jun; Wang, Sihai; Wang, Chuan
- Abstract
Hyper-entanglement is a system constituted by photons entangled in multiple degrees of freedom (DOF), being considered as a promising way of increasing channel capacity and guaranteeing powerful eavesdropping safeguard. In this work, we propose a coding scheme based on a 3-particle hyper-entanglement of polarization and orbital angular momentum (OAM) system and its application as a quantum secure direct communication (QSDC) protocol. The OAM values are specially encoded by Fibonacci sequence and the polarization carries information by defined unitary operations. The internal relations of the secret message enhances security due to principle of quantum mechanics and Fibonacci sequence. We also discuss the coding capacity and security property along with some simulation results to show its superiority and extensibility.
- Subjects
QUANTUM states; COMMUNICATION; POLYMER networks; PHOTONICS; DEGREES of freedom
- Publication
International Journal of Quantum Information, 2016, Vol 14, Issue 8, p-1
- ISSN
0219-7499
- Publication type
Article
- DOI
10.1142/S021974991650043X