Quantum Noise Secured Terahertz Communications
IEEE Journal of Selected Topics in Quantum Electronics 2023
Lu Zhang, Deng Qiuzhuo, Zhang Hongqi, Yang Zuomin, Xiaodan Pang, Vjačeslavs Bobrovs, Sergei Popov, Wu Yixin, Yu Xiongbin, Oskars Ozoliņš, Yu Xianbin

The terahertz communications display an important role in high-speed wireless communications, the security threat from the eavesdroppers in the terahertz communications has been gaining attention recently. The true randomness in the physical layer can ensure one-time-pad encryption for secured terahertz communications, however, physical layer security schemes like the quantum key distribution methods suffer from device imperfections that limit the desirable signal rate and link distance. Herein, we present the quantum noise secured terahertz wireless communications with photonic terahertz signal generation schemes. With the high-order diffusion algorithms, the signal is masked by the quantum noise ciphers to the eavesdroppers and cannot be detected because the inevitable randomness by quantum noise measurement will cause physical measurement errors. In the experiment, we demonstrate 16 Gbits-1 quantum noise secured terahertz wireless communications with the conventional optical communication realms and devices, operating at 300 GHz terahertz frequency. This quantum noise secured terahertz communication approach is a significant step toward high-security wireless communications.

Atslēgas vārdi
Adaptive optics | Ciphers | communication system security | communication system signaling | High-speed optical techniques | optical communication | Optical mixing | Optical noise | optical signal processing | Optical transmitters | quantum theory | terahertz radiation | Wireless communication

Zhang, L., Qiuzhuo, D., Hongqi, Z., Zuomin, Y., Pang, X., Bobrovs, V., Popov, S., Yixin, W., Xiongbin, Y., Ozoliņš, O., Xianbin, Y. Quantum Noise Secured Terahertz Communications. IEEE Journal of Selected Topics in Quantum Electronics, 2022, Vol. 29, No. 5, 1.-10.lpp. ISSN 1077-260X. e-ISSN 1558-4542. Pieejams: doi:10.1109/JSTQE.2022.3218848

Publikācijas valoda
English (en)
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