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High-dimensional broadband quantum memory significantly expands quantum information processing capabilities, but the memory efficiency becomes insufficient when extended to high dimensions. We demonstrate an efficient quantum memory for…

Quantum Physics · Physics 2025-09-03 Zeliang Wu , Jinxian Guo , Zhifei Yu , Wenfeng Huang , Chun-Hua Yuan , Weiping Zhang , L. Q. Chen

As an attractive degree of freedom in electromagnetic (EM) waves, the orbital angular momentum (OAM) enables infinite communication channels for both classical and quantum communications. The exploration of OAM generation inspires various…

Optics · Physics 2018-08-21 Menglin L. N. Chen , Li Jun Jiang , Wei E. I. Sha

Light with orbital angular momentum (OAM) has great potentials in both classical and quantum optical communications such as enhancing the transmission capacity of a single communication channel because of its unlimited dimensions. Based on…

Quantum Physics · Physics 2015-07-10 Zhi-Yuan Zhou , Yan Li , Dong-Sheng Ding , Wei Zhang , Shuai Shi , Bao-Sen Shi , Guang-Can Guo

Orbital angular momentum (OAM) of light is an attractive degree of freedom for funda- mentals studies in quantum mechanics. In addition, the discrete unbounded state-space of OAM has been used to enhance classical and quantum…

Quantum Physics · Physics 2013-11-18 Mohammad Mirhosseini , Mehul Malik , Zhimin Shi , Robert W. Boyd

Wireless backhaul offers a more cost-effective, time-efficient, and reconfigurable solution than wired backhaul to connect the edge-computing cells to the core network. As the amount of transmitted data increases, the low-rank…

Information Theory · Computer Science 2023-12-05 Yufei Zhao , Ziyang Wang , Yilong Lu , Yong Liang Guan

Most of the existing deep learning based methods for vessel segmentation neglect two important aspects of retinal vessels, one is the orientation information of vessels, and the other is the contextual information of the whole fundus…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Xinxu Wei , Kaifu Yang , Danilo Bzdok , Yongjie Li

The influence of atmospheric turbulence on acquired surveillance imagery poses significant challenges in image interpretation and scene analysis. Conventional approaches for target classification and tracking are less effective under such…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Disen Hu , Nantheera Anantrasirichai

Perfect (optical) vortices (PVs) have the mooted ability to encode orbital angular momentum (OAM) onto the field within a well-defined annular ring. Although this makes the near-field radial profile independent of OAM, the far-field radial…

Optics · Physics 2019-06-26 Jonathan Pinnell , Valeria Rodriguez-Fajardo , Andrew Forbes

Entanglement is a vital resource for realizing many tasks such as teleportation, secure key distribution, metrology and quantum computations. To effectively build entanglement between different quantum systems and share information between…

In this paper, we propose a novel adaptive decoding mechanism (ADM) for the unmanned aerial vehicle (UAV)-enabled uplink (UL) non-orthogonal multiple access (NOMA) communications. Specifically, considering a harsh UAV environment, where…

Information Theory · Computer Science 2023-03-10 Thanh Luan Nguyen , Georges Kaddoum , Tri Nhu Do , Daniel Benevides da Costa , Zygmunt J. Haas

The high-dimensional basis of orbital angular momentum (OAM) has several added and unique advantages for photonics quantum technologies compared to the polarization basis, which is only two-dimensional. However, one of the major roadblocks…

Quantum Physics · Physics 2025-02-21 Suman Karan , Martin P. Van Exter , Anand K. Jha

We report on the storage of Orbital Angular Momentum (OAM) of light via the phenomenon of Coherent Population Oscillation (CPO) in cold cesium atoms. The experiment is performed using a delayed four wave mixing configuration where the…

Free space optical (FSO) communications using orbital angular momentum (OAM) modes has recently received a considerable interest. Propagating OAM modes through free space may be subject to atmospheric turbulence (AT) distortions that cause…

Signal Processing · Electrical Eng. & Systems 2019-07-10 El-Mehdi Amhoud , Abderrahmen Trichili , Boon S. Ooi , Mohamed-Slim Alouini

Semantic segmentation for aerial imagery is a challenging and important problem in remotely sensed imagery analysis. In recent years, with the success of deep learning, various convolutional neural network (CNN) based models have been…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Panfeng Li , Youzuo Lin , Emily Schultz-Fellenz

Advancements in 6G wireless technology have elevated the importance of beamforming, especially for attaining ultra-high data rates via millimeter-wave (mmWave) frequency deployment. Although promising, mmWave bands require substantial beam…

Networking and Internet Architecture · Computer Science 2024-07-31 Avi Deb Raha , Kitae Kim , Apurba Adhikary , Mrityunjoy Gain , Zhu Han , Choong Seon Hong

This paper proposes a unified statistical channel model to characterize the atmospheric turbulence induced distortions faced by orbital angular momentum (OAM) in free space optical (FSO) communication systems. In this channel model, the…

Signal Processing · Electrical Eng. & Systems 2019-10-24 El-Mehdi Amhoud , Boon S. Ooi , Mohamed-Slim Alouini

Light carrying orbital angular momentum (OAM) has great potential in enhancing the information channel capacity in both classical and quantum optical communications. Long distance optical communication requires the wavelengths of light are…

Quantum Physics · Physics 2016-02-03 Zhi-Yuan Zhou , Yan Li , Dong-Sheng Ding , Wei Zhang , Shuai Shi , Bao-Sen Shi , Guang-Can Guo

Quantum key distribution (QKD) employed orbital angular momentum (OAM) for high-dimensional encoding enhances the system security and information capacity between two communication parties. However, such advantages significantly degrade…

Quantum Physics · Physics 2021-09-14 Zhiwei Tao , Yichong Ren , Azezigul Abdukirim , Shiwei Liu , Ruizhong Rao

High-precision scientific simulation faces a long-standing trade-off between computational efficiency and physical fidelity. To address this challenge, we propose NeuralOGCM, an ocean modeling framework that fuses differentiable programming…

Machine Learning · Computer Science 2025-12-15 Hao Wu , Yuan Gao , Fan Xu , Fan Zhang , Guangliang Liu , Yuxuan Liang , Xiaomeng Huang

A light beam carrying orbital angular momentum (OAM) is characterized by a helical phase-front that winds around the center of the beam. These beams have unique properties that have found numerous applications. In the field of data…

Optics · Physics 2023-10-13 Julian Schulz , Georg von Freymann
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