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Brief Introduction

Quantum communication is an interdisciplinary subject between quantum physics and information science. It has important applications in the realization of unconditional secure transmission of information, manipulation and transmission of quantum information. The research group mainly conducts experimental and theoretical research on quantum communication, explores and studies new principles and methods of quantum communication, and develops new technologies related to quantum communication, develops related principle devices, and promotes the development of quantum communication. Practical. Recent research directions: continuous variable quantum secure communication; cavity quantum light; light field quantum state engineering and manipulation.

Recent research work

Quantum random number generator with discarding boundary bin measurement and multiinterval sampling

Authors:Zhenguo Lu, Jianqiang Liu, Xuyang Wang, Pu Wang, Yongmin Li, and Kunchi Peng

A quantum random number generator (QRNG) provides a reliable means for the generation of true random numbers. The inherent randomness of the vacuum fluctuations makes the quantum vacuum state a superior source of entropy.

Opt. Express 29 (8) , pp.12440-12453

Continuous-variable measurement-device-independent quantum key distribution with source-intensity errors

Authors:Pu Wang, Xuyang Wang, and Yongmin Li

Continuous-variable measurement-device-independent quantum key distribution (CV -MDI-QKD) is immune to all detector side channel attacks, however its security requires trusted sources. 

Phys. Rev. Applied, 102, 022609 (2020)

Impact of Four-Wave-Mixing Noise from Dense Wavelength-Division-Multiplexing Systems on Entangled-State Continuous-Variable Quantum key

Authors:Shanna Du, Yan Tian, and Yongmin Li.

Integrating quantum key distribution (QKD) on the existing optical fiber network through dense wavelength-division multiplexing (DWDM) can greatly reduce the costs of quantum channels and improve the....

Phys. Rev. Appl. 14, 024013 (2020).

Microfiber Mechanical Resonator for Optomechanics

Authors:Qiang Zhang, Ruili Zhai, Shiwei Yang, Shuai Yang, and Yongmin Li.

Optomechanics is a promising field with important applications in ultrasensitive sensing and quantum information processing. A variety of micromechanical resonators are proposed and demonstrated for....

ACS Photonics 7, 695 (2020).

High-Gain and Narrow-Bandwidth Optical Amplifier via Optomechanical Four-Wave Mixing

Authors:Zongyang Li, Zhenqiang Ren, Yongmin Li, Yong-chun Liu, and Kunchi Peng.

We present an ultrahigh gain, narrow bandwidth, and low noise optical amplifier via the radiation pressure induced by the four-wave mixing (FWM) effect based on a cavity optomechanical system in the....

Phys. Rev. Applied, 11, 064048 (2019).