A5101792872- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Quantum optics and atomic interactions
- Quantum Mechanics and Applications
- Semiconductor Quantum Structures and Devices
- Chemical Looping and Thermochemical Processes
- Semiconductor Lasers and Optical Devices
- Remote-Sensing Image Classification
- Black Holes and Theoretical Physics
- Carbon Dioxide Capture Technologies
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Catalysts for Methane Reforming
- Remote Sensing and Land Use
- Photonic and Optical Devices
- Optical Systems and Laser Technology
South China Normal University
2023-2024
PLA Information Engineering University
2023-2024
Sun Yat-sen University
2019-2023
Cold atom based narrowband entangled photon sources are important for efficient atom–photon interaction, which is at the heart of long-distance quantum communication and memory protocols. Complete characterization photons requires acquiring frequency-time two-photon wavefunction, involving both joint temporal intensity (JTI) phase (JTP) measurements. Here, we demonstrate stimulated emission tomography wavefunction from cold atoms. We show more than six orders magnitude (×106) improvement in...
Quantum photonic devices are candidates for realizing practical quantum computers and networks. The development of integrated can greatly benefit from the ability to incorporate different types materials with complementary, superior optical or electrical properties on a single chip. Semiconductor dots (QDs) serve as core element in emerging modern technologies by allowing on-demand generation single-photons entangled photon pairs. During each excitation cycle, there is one only emitted pair....
Deep neural network-based synthetic aperture radar (SAR) image change detection algorithms are affected by coherent speckle noise in the original image. Existing denoising methods have predominantly focused on generating binary images based pre-classification of pixels, which is insufficient removing interfering noise. Herein, to further reduce points generated clustering algorithm, we combined characteristics fuzzy demonstrating obvious advantages proposed fast and flexible convolutional...
Because of the Weyl anomaly, background axial vector field induces novel chiral currents near a boundary. Recently, non-minimal holographic model has been proposed to produce expected current. The critical point is adding boundary mass term Aˆ2 field. This paper investigates with general action in AdS/BCFT. We find nonlinear gauge-violating interactions V1(Aˆ2) generally lead ghost instability and singularity problem. On other hand, gauge-invariant V2(Fˆ2) are free these issues. For squared...
Semi-quantum key distribution (SQKD) allows sharing random keys between a quantum user and classical user. However, implementing operations is challenging, posing hurdle to achieving the Single-state protocol. By using "selective modulation" method, feasibility of SQKD verified in principle. The proposal selective modulation method enables realization other protocols for SQKD. To advance experimental progress SQKD, we propose implement phase-encoded semi-quantum system based on protocol...
Semi-quantum key distribution (SQKD) allows a quantum user and classical to share string of secret keys, providing support for application scenarios that cannot withstand the high cost resources. In this paper, we propose what believe be first proof-of-principle experimental demonstration free space SQKD based on single-state protocol, which is equipped with polarization encoding scheme employing method selective modulation. During half-hour test time each operation, overall experiment...
There are several groups have implemented polarization encoding measurement-device-independent quantum key distribution (MDI-QKD). However, these use manual controller to achieve the initial state for encoders, and some of encoders cannot fully satisfy two bases distribution. Here, we apply an all-fiber calibration-free intrinsically stable polarization-modulated unit (APMU), which can maintain hours without any calibration. A proof-of-principle demonstration MDI-QKD based on our APMU is...
Objectives: When detecting changes in synthetic aperture radar (SAR) images, the quality of difference map has an important impact on detection results, and speckle noise image interferes with extraction change information. In order to improve accuracy SAR map, this paper proposes a method that combines popular deep neural network clustering algorithm.Methods: Firstly, was constructed, FFDNet architecture used retrain image, parameters better effect suppression were obtained. Then log ratio...
Semi-quantum key distribution allows a full quantum user Alice and classical Bob to share pair of security keys guaranteed by physical principles. is proposed while verifying its robustness. Subsequently, unconditional semi-quantum system verified theoretically. In 2021, the feasibility based on mirror protocol was experimentally. However, experimental still uses laser pulse with strong attenuation. It has been proved in literature that encounters risk secret leakage under photon number...