Article
Quantum Science & Technology
Yunlong Wang, Shihao Ru, Feiran Wang, Pei Zhang, Fuli Li
Summary: In this work, experimental demonstrations of four-dimensional X gate and controlled quantum gates based on orbital-angular-momentum and polarization degree of freedom of single photons, respectively, are presented. These results are important for achieving arbitrary high-dimensional quantum circuits, as well as for high-dimensional quantum communication and computation.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Quantum Science & Technology
Feiran Wang, Shihao Ru, Yunlong Wang, Min An, Pei Zhang, Fuli Li
Summary: The study proposed and implemented a quantum Fredkin gate, using polarization and photonic orbital angular momentum to achieve SWAP operation with an effective conversion rate of 95.4%. Additionally, a specific type of state similar to Greenberger-Horne-Zeilinger states can be prepared using the quantum Fredkin gate, demonstrating its quantum contextual characteristic.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Xiyuan Lu, Mingkang Wang, Feng Zhou, Mikkel Heuck, Wenqi Zhu, Vladimir A. Aksyuk, Dirk R. Englund, Kartik Srinivasan
Summary: The authors demonstrate a method for generating orbital angular momentum (OAM) using photonic crystal ring resonators, while maintaining high cavity quality factors (up to 10^6). By ejecting high angular momentum states of a whispering gallery mode (WGM) microresonator through a grating-assisted mechanism, a scalable and chip-integrated solution for OAM generation is achieved.
NATURE COMMUNICATIONS
(2023)
Article
Quantum Science & Technology
Yuanyuan Chen, Sebastian Ecker, Lixiang Chen, Fabian Steinlechner, Marcus Huber, Rupert Ursin
Summary: High-dimensional quantum entanglement is a prolific field in quantum information processing due to its high information capacity and error resilience. The study successfully manipulated high-dimensional entanglement using Hong-Ou-Mandel interference and investigated the generation and characterization of frequency entangled qudits in different dimensions both theoretically and experimentally.
NPJ QUANTUM INFORMATION
(2021)
Article
Quantum Science & Technology
Chengyuan Wang, Ya Yu, Yun Chen, Mingtao Cao, Jinwen Wang, Xin Yang, Shuwei Qiu, Dong Wei, Hong Gao, Fuli Li
Summary: This study successfully achieved the storage and retrieval of photonic qubits encoded with OAM state in a cold rubidium atomic ensemble, with a storage efficiency of 65% and an average conditional fidelity above 98%. This advancement is crucial for the development of high-dimensional and large-scale quantum networks.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Quantum Science & Technology
D. Koutny, Z. Hradil, J. Rehacek, L. L. Sanchez-Soto
Summary: Improving axial resolution is crucial for three-dimensional optical imaging systems, and using vortex beams can achieve ultimate precision in axial localization. While this limit can be reached with just an intensity scan for Laguerre-Gauss beams, it is not the case for superpositions of such beams. Microscopy methods based on rotating vortex beams may benefit from advanced mode-sorting techniques replacing traditional intensity sensors.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Felix Stopp, Maurizio Verde, Milton Katz, Martin Drechsler, Christian T. Schmiegelow, Ferdinand Schmidt-Kaler
Summary: Using a structured light beam, researchers demonstrate the ability to control the motion of a single atom in different directions, which has potential applications in quantum computing and simulations. The researchers observe coherent dynamics and strong carrier suppression, and quantify the transverse momentum transfer between the atom and the beam.
PHYSICAL REVIEW LETTERS
(2022)
News Item
Optics
Philippe St-Jean
Summary: This paper presents a novel solid-state laser that can generate a large array of phase-locked optical vortices with tunable orbital angular momentum.
News Item
Optics
Spencer W. Jolly
Summary: A diffractive axicon can create intricate connections between topological charges and frequencies of ultrashort laser pulses, resulting in a diverse range of coiled light structures.
Article
Physics, Multidisciplinary
Yangyang Fu, Yuan Tian, Xiao Li, Shili Yang, Youwen Liu, Yadong Xu, Minghui Lu
Summary: In this study, a new method for achieving robust asymmetric generation of acoustic vortex field through dual-layer metasurfaces is introduced. This is achieved by controlling the intrinsic topologic charges and the parity of geometry design. The underlying physics is contributed to the one-way process of orbital angular momentum transition ensured by the broken spatial symmetry and the external topologic charge from the vortex diffraction. The novel phenomenon is experimentally demonstrated, providing new routes to manipulate the asymmetric response of vortex fields and potential applications in passive OAM-based diodes.
PHYSICAL REVIEW LETTERS
(2022)
Editorial Material
Optics
Gianluca Ruffato
Summary: A recent publication suggests a solution to overcome the limitations of optical techniques and high-intensity beams by probing highly-intense vortex pulses with a structured reference beam.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Zelin Ma, Poul Kristensen, Siddharth Ramachandran
Summary: Spatial mode-count scalability in optical fibers is severely limited by perturbative mode mixing. We propose an alternative means of light guidance using light's orbital angular momentum to create a centrifugal barrier. This distinctive light-guidance regime enables low-loss transmission of light, substantially increasing the information content per photon for quantum or classical networks.
Article
Optics
Pauline Boucher, Hugo Defienne, Sylvain Gigan
Summary: This study demonstrates tunable control of spatial correlations between photon pairs in order to engineer the properties of quantum optical states, measured using an EMCCD camera. By shaping the spatial pump beam profile, the spatial structure of entangled photon pairs in high dimensions was tailored without affecting intensity, holding potential for quantum technologies based on high-dimensional spatial entanglement.
Article
Optics
Jie Zhu, Minyu Fan, Yonjie Pu, Huinan Li, Sha Wang
Summary: This study proposes an approach to increase the channel capacity of free-space optical communication systems by integrating superimposed OAM states and deep learning techniques. A two-step CNN method is proposed to accurately decode the high-dimensional codes. The feasibility of the method is demonstrated through successful transmission of a high-resolution image with low bit error rate.
Article
Multidisciplinary Sciences
Tiancheng Zhang, Kaichen Dong, Jiachen Li, Fanhao Meng, Jingang Li, Sai Munagavalasa, Costas P. Grigoropoulos, Junqiao Wu, Jie Yao
Summary: In this work, a non-trivial twist-enabled coupling mechanism was identified and formulated in twisted bilayer photonic crystals, resulting in the generation of optical vortices. This study expands the field of moire photonics and opens up new possibilities for its applications.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Applied
Zhi-Han Zhu, Peng Chen, Hong-Wei Li, Bo Zhao, Zhi-Yuan Zhou, Wei Hu, Wei Gao, Yan-Qing Lu, Bao-Sen Shi
APPLIED PHYSICS LETTERS
(2018)
Article
Optics
Shilong Liu, Zhenhai Han, Shikai Liu, Yinhai Li, Zhiyuan Zhou, Baosen Shi
OPTICS COMMUNICATIONS
(2018)
Article
Optics
Chen Yang, Zhi-Yuan Zhou, Yan Li, Yin-Hai Li, Shi-Long Liu, Sh-Kai Liu, Zhao-Huai Xu, Guang-Can Guo, Bao-Sen Shi
Article
Optics
Ying-Hao Ye, Ming-Xin Dong, Yi-Chen Yu, Dong-Sheng Ding, Bao-Sen Shi
Article
Physics, Applied
Shi-Kai Liu, Chen Yang, Shi-Long Liu, Zhi-Yuan Zhou, Yan Li, Yin-Hai Li, Zhao-Huai Xu, Guang-Can Guo, Bao-Sen Shi
PHYSICAL REVIEW APPLIED
(2019)
Article
Optics
Hai-Jun Wu, Zhi-Yuan Zhou, Wei Gao, Bao-Sen Shi, Zhi-Han Zhu
Article
Optics
Yan Li, Zhi-Yuan Zhou, Shi-Long Liu, Shi-Kai Liu, Chen Yang, Zhao-Huai Xu, Yin-Hai Li, Bao-Sen Shi
Proceedings Paper
Engineering, Electrical & Electronic
Wen-Tan Fang, Yin-Hai Li, Zhi-Yuan Zhou, Li-Xin Xu, Bao-Sen Shi
QUANTUM COMMUNICATIONS AND QUANTUM IMAGING XVI
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Shi-long Liu, Zhi-yuan Zhou, Shi-kai Liu, Yin-hai Li, Shuai Shi, Bao-sen Shi
QUANTUM COMMUNICATIONS AND QUANTUM IMAGING XVI
(2018)
Article
Optics
Wei Zhang, Dong-Sheng Ding, Ming-Xin Dong, Shuai Shi, Kai Wang, Guang-Can Guo, Bao-Sen Shi
Article
Optics
Wei Zhang, Ming-Xin Dong, Dong-Sheng Ding, Shuai Shi, Kai Wang, Zhi-Yuan Zhou, Guang-Can Guo, Bao-Sen Shi
Article
Optics
Y. C. Yu, D. S. Ding, M. X. Dong, S. Shi, W. Zhang, B. S. Shi
Article
Optics
S. Shi, D. S. Ding, Y. C. Yu, W. Zhang, M. X. Dong, K. Wang, Y. H. Ye, G. C. Guo, B. S. Shi
Article
Optics
Shilong Liu, Zhiyuan Zhou, Shikai Liu, Yinhai Li, Yan Li, Chen Yang, Zhaohuai Xu, Zhaodi Liu, Guangcan Guo, Baosen Shi