Article
Optics
Xunwei Xu, Yanjun Zhao, Hui Wang, Aixi Chen, Yu-Xi Liu
Summary: This paper introduces a generic method to achieve a significant difference between the stimulated emission and absorption coefficients of two nondegenerate energy levels through a combination of synthetic magnetism and reservoir engineering, referred to as a nonreciprocal transition. A specific implementation using a cyclic three-level atom system demonstrates this nonreciprocal transition effect.
PHOTONICS RESEARCH
(2021)
Article
Biochemical Research Methods
Michael L. Buttolph, Menansili A. Mejooli, Pavel Sidorenko, Chi-Yong Eom, Chris B. Schaffer, Frank W. Wise
Summary: This study demonstrates a compact and robust fiber system that generates naturally synchronized femtosecond pulses at 1050 nm and 1200 nm for two-photon fluorescence microscopy imaging of the mouse brain.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Multidisciplinary Sciences
Heonoh Kim, Osung Kwon, Han Seb Moon
Summary: Multiphoton interference is a key phenomenon in modern quantum mechanics and quantum optics, crucial for the advancement of quantum information science and technologies. Experimental studies using weak coherent states for two-photon interference have provided insights into the interference at the single-photon level. The results contribute to a deeper understanding of the physics underlying multiphoton interference.
SCIENTIFIC REPORTS
(2021)
Article
Physics, Multidisciplinary
Sheng-li Ma, Ji-kun Xie, Ya-long Ren, Xin-ke Li, Fu-li Li
Summary: We propose a method to generate photon-pair blockade in a Josephson-photonics circuit by utilizing a combination of a superconducting charge qubit and two nondegenerate microwave resonators. The two resonators release their energies in the form of strongly correlated pairs of photons when the Josephson frequency matches the resonance frequencies of the qubit and resonators. This study provides a practical approach for producing a bright microwave source of antibunched photon pairs, with potential applications in spectroscopy, metrology, and quantum information processing.
NEW JOURNAL OF PHYSICS
(2022)
Article
Engineering, Mechanical
Xiang Chen, Dumitru Mihalache, Jiguang Rao
Summary: This paper studies the dynamics and collisions of degenerate and nondegenerate bright solitons in two-component nonlinear Schrodinger equations coupled to Boussinesq equation. Degenerate solitons with single-hump profiles exhibit elastic and inelastic collisions, while their velocities in the short wave components and long wave component are identical. Nondegenerate single solitons can have double- or single-hump profiles with identical velocities in all components or single-hump profiles with unequal velocities in the short wave components. The collisions of nondegenerate solitons do not result in the redistribution of soliton intensities. Three different types of collisions of nondegenerate two-soliton solutions are studied in detail.
NONLINEAR DYNAMICS
(2023)
Article
Multidisciplinary Sciences
Bing Gu, Daniel Keefer, Flavia Aleotti, Artur Nenov, Marco Garavelli, Shaul Mukamel
Summary: This study demonstrates that two-photon excitation with quantum light can influence elementary photochemical events, with simulations showing how entangled two-photon excitation affects azobenzene trans -> cis isomerization. Photon entanglement modulates nuclear wave packets, influencing the reaction transition state and product yield. The distribution of vibronic coherences during conical intersection passage strongly depends on the initial wave packet shape upon quantum light excitation, with X-ray signals simulated for experimental monitoring.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Cell Biology
Katarzyna Styczynska-Soczka, Anish K. Amin, Andrew C. Hall
Summary: Abnormal chondrocytes are present in nondegenerate cartilage, suggesting dedifferentiation and production of a weakened matrix. With degeneration, the percentage of normal chondrocytes decreases while abnormal cells and clusters increase, along with collagen type I labelling. The study also found an increase in collagen type I around chondrocytes with degeneration, indicating fibro-cartilaginous repair tissue progression similar to osteoarthritis.
JOURNAL OF CELLULAR PHYSIOLOGY
(2021)
Article
Multidisciplinary Sciences
Mu Yang, Hao-Qing Zhang, Yu-Wei Liao, Zheng-Hao Liu, Zheng-Wei Zhou, Xing-Xiang Zhou, Jin-Shi Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo
Summary: This paper explores the tailored topological physics in optical cavities through synthetic dimensions, specifically focusing on a degenerate cavity containing multiple optical angular momenta. The authors have designed and experimentally controlled the coupling among synthetic dimensions, resulting in a periodically driven spin-orbital coupling system. The system's properties were characterized through transmission intensity measurements, revealing the potential for rich topological physics in a compact platform.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Ran Huang, S. K. Ozdemir, Jie-Qiao Liao, Fabrizio Minganti, Le-Man Kuang, Franco Nori, Hui Jing
Summary: This study demonstrates the emergence of single-photon blockade in a Kerr microring resonator due to EP-induced asymmetric coupling and nonlinearity-induced anharmonic energy-level spacing. By tuning the EP position, quantum correlations can be controlled, opening up opportunities for the fabrication and utilization of single-photon quantum EP devices.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Naoto Aizawa, Kazuya Niizeki, Riku Sasaki, Tomoyuki Horikiri
Summary: In this paper, a Sagnac-type spontaneous parametric down conversion system using a Fresnel rhomb as a wideband and reasonable retarder is proposed. It enables the generation of highly nondegenerate two-photon entanglement comprising the telecommunication wavelength and quantum memory wavelength. Quantum state tomography is performed to evaluate the degree of entanglement, and a fidelity of up to 94.4% with a Bell state |40+) is obtained. Therefore, this paper demonstrates the potential of nondegenerate EPSs compatible with both telecommunication wavelength and quantum-memory wavelength in quantum repeater architecture.
Article
Materials Science, Multidisciplinary
Wei Wang, Qi Wei, Yiyang Gong, Guichuan Xing, Bo Wu, Guofu Zhou
Summary: This study found that nondegenerate two-photon absorption in methylammonium lead bromide single crystal is much stronger than degenerate two-photon absorption. A nonlinear infrared pulse photodetector based on this property has been developed for high-sensitivity infrared photon detection.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Engineering, Multidisciplinary
Najat Magouh, Lahcen Azrar, Khaled Alnefaie
Summary: This paper presents mathematical modelling and semi-analytical solutions for 3-D static problems of electro-elastic mono and multilayered plates using the extended Stroh-like formalism. The dynamic analysis of such structures is conducted by coupling a time trigonometric series with the Stroh-like formalism. The results demonstrate the influence of graded factor, degeneracy, and excitation on mechanical and electrical responses of laminated plates.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Thermodynamics
Ehsanur Rahman, Alireza Nojeh
Summary: This study investigates an alternative method to thermophotovoltaics using photon coupling and thermionic energy conversion. The analysis shows that the thermionic device can achieve higher output power density and energy conversion efficiency compared to the thermophotovoltaic device under the same thermal and conversion materials conditions. Additionally, the thermionic device's maximum-power-point voltage exceeds the material's band gap, indicating its potential as a promising alternative to thermophotovoltaics.
APPLIED THERMAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
M. Moreno-Cardoner, D. Goncalves, D. E. Chang
Summary: The proposed system combines subwavelength, two-dimensional atomic arrays and Rydberg interactions to achieve strong, coherent interactions between individual photons with high fidelity. The system has significant advantages in optical response and error scaling, enabling a coherent photon-photon gate or switch.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
G. U. A. N. G. Z. H. O. N. G. Lin, D. A. I. X. U. A. N. Wu, J. I. A. W. E. I. Luo, H. A. N. P. E. N. G. Liang, Z. I. Y. A. N. G. Wei, S. I. N. U. O. Liu, L. I. J. I. E. Shao, Y. U. E. C. H. E. N. G. Shen
Summary: Ultrasound-modulated optical tomography (UOT) is a promising imaging modality that combines the advantages of both light and ultrasound for deep-tissue high-resolution imaging. Camera-based UOT with coaxial interferometry reduces system complexity and copes with environmental disturbances.
Article
Physics, Multidisciplinary
Jin-Hun Kim, Jin-Woo Chae, Youn-Chang Jeong, Yoon-Ho Kim
Summary: By using time-bin mode with actively operating feedback schemes, high-quality entangled qubits have been successfully distributed over long-distance fiber channels between two distant parties separated by up to 60 km. This demonstrates the significance of long-range, long-lasting quantum communication through high values of two-photon interference visibilities and violation of the Clauser-Horne-Shimony-Holt Bell inequality.
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2022)
Article
Physics, Multidisciplinary
Yosep Kim, Seung-Yeun Yoo, Yoon-Ho Kim
Summary: Weak-value amplification (WVA) is a method for amplifying tiny physical signals at the expense of detection probability. By demonstrating a novel WVA scheme based on iterative interactions, the Heisenberg limit of precision scaling can be achieved without the need for entangled resources.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Wei Du, Jia Kong, Guzhi Bao, Peiyu Yang, Jun Jia, Sheng Ming, Chun-Hua Yuan, J. F. Chen, Z. Y. Ou, Morgan W. Mitchell, Weiping Zhang
Summary: The paper presents a new interferometer topology that nests a SU(2) interferometer inside a SU(1,1) interferometer. This new interferometer achieves high signal-to-noise ratio, sensitivity beyond the standard quantum limit, and tolerance to photon losses. Experimental results demonstrate its effectiveness in addressing the issue of photon losses in interferometers.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Jin-Hun Kim, Jin-Woo Chae, Youn-Chang Jeong, Yoon-Ho Kim
Summary: We report an experimental demonstration of a field-deployable quantum communication network involving multiple users, where all users can share pairwise entanglement in the time-bin degree of freedom of photons using a single spontaneous-parametric down-conversion source. We further demonstrate the practical feasibility of a quantum network with time-bin entanglement over a wavelength-multiplexed fiber network.
Article
Optics
Dong-Gil Im, Yoon-Ho Kim
Summary: This study theoretically investigates the effects of three types of decoherence on bipartite entangled states. It provides the threshold of decoherence strength that does not lead to the loss of entanglement and Bell nonlocality. Interesting findings include the survival of entanglement under specific conditions and the asymmetric behavior of Bell nonlocality in the presence of amplitude damping.
Article
Physics, Multidisciplinary
Xingchang Wang, Jianmin Wang, Zhiqiang Ren, Rong Wen, Chang-Ling Zou, Georgios A. Siviloglou, J. F. Chen
Summary: For the first time, this study observes quantum interference between flying photons and a single quantum of stored atomic coherence, demonstrating fermionlike antibunching behavior. The hybrid nature of this magnon-photon quantum interface can be applied to versatile quantum memory platforms and can lead to fundamentally different photon distributions from those occurring in boson sampling.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Francesco V. Pepe, Giovanni Scala, Gabriele Chilleri, Danilo Triggiani, Yoon-Ho Kim, Vincenzo Tamma
Summary: We demonstrate the distance sensitivity of thermal light second-order interference beyond spatial coherence. This kind of interference is closely related to the degree of correlation of the measured interference pattern and can preserve sensitivity to distances even in the presence of turbulence.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Engineering, Multidisciplinary
Ka Hung Chan, Shengwang Du, Xian Chen
Summary: This study presents a theoretical exploration of surface step characterization using reflected incoherent-light differential interference microscopy, with consideration of the optical diffraction effect. By integrating localization analysis, a quantitative differential interference optical system is developed, which demonstrates high axial resolution in measuring surface height variation. The experiment successfully characterizes nanometer-size steps with subnanometer accuracy, indicating the potential of optical differential interference microscopy for real-time surface structure characterization in micro/nano-electromechanical systems.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
U. -Shin Kim, Yoon-Ho Kim
Summary: This Letter theoretically shows that the stationary light pulse (SLP) process supports two phase-matching conditions and experimentally demonstrates the simultaneous trapping of two optical pulses with SLP. This has important implications for the development of SLP-based applications.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Rong Chen, Xiao Tang, Yuxuan Zhao, Zeyu Shen, Meng Zhang, Yusheng Shen, Tiantian Li, Casper Ho Yin Chung, Lijuan Zhang, Ji Wang, Binbin Cui, Peng Fei, Yusong Guo, Shengwang Du, Shuhuai Yao
Summary: A deep-learning-based single-frame super-resolution microscopy method is proposed, which allows for high spatiotemporal resolution imaging of cellular dynamics. It overcomes the limitations of multi-frame super-resolution microscopy in terms of long acquisition times and phototoxicity.
NATURE COMMUNICATIONS
(2023)
Article
Biology
Zeyu Shen, Bowen Jia, Yang Xu, Jonas Wessen, Tanmoy Pal, Hue Sun Chan, Shengwang Du, Mingjie Zhang, Rohit Pappu
Summary: Formation of membraneless organelles or biological condensates via phase separation expands the cellular organelle repertoire. In this study, an adaptive single-molecule imaging method was developed to track individual molecules in various biological condensates. The method enables measurements of concentrations, motion behavior, and molecular exchanges between condensed and dilute phases. The findings offer insights into the molecular mechanisms underlying the assembly and dynamics of biological condensates.
Article
Quantum Science & Technology
Eun Oh, Xuanying Lai, Jianming Wen, Shengwang Du
Summary: The promise of universal quantum computing requires scalable control interactions between single or multiple qubits. Current leading candidate platforms for quantum computing, superconducting circuits, trapped ions, and neutral atom arrays, suffer from strong interaction with environmental and control noises resulting in qubit decoherence. Photons, on the other hand, have advantages of being well decoupled from the environment and having high speed and timing capabilities. This article proposes a universal distributed quantum computing scheme based on photons and atomic-ensemble-based quantum memories, showcasing the potential of a photon-atom network hybrid approach.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Optics
Yue Jiang, Yefeng Mei, Shengwang Du
Summary: We propose a macroscopic phenomenological formula for quantum Langevin equations describing two coupled phase-conjugated electromagnetic fields with linear loss (gain) and complex nonlinear coupling coefficient. This formula, obtained from the coupling matrix, preserves the field commutation relations and correlations without requiring knowledge of microscopic light-matter interaction and atomic structures. We validate the formula by numerically confirming its consistency with the microscopic Heisenberg-Langevin theory in the context of spontaneous four-wave mixing in a double-four-level atomic system. We also find that a complex-valued nonlinear coupling coefficient can induce noise even in the absence of linear gain or loss. Finally, we apply the quantum Langevin equations to study the effects of linear gain and loss, complex phase mismatching, and complex nonlinear coupling coefficient on entangled photon pair generation, particularly their temporal quantum correlations.
Article
Optics
Xi-Wang Luo, Chuanwei Zhang, Irina Novikova, Chen Qian, Shengwang Du
Summary: This study proposes a wavelength conversion device for single-photon polarization qubits using continuous-variable quantum teleportation. It efficiently converts qubits between near-infrared and telecom wavelength, potentially paving the way for long-distance quantum networks.
Article
Optics
Ying Zuo, Chenfeng Cao, Ningping Cao, Xuanying Lai, Bei Zeng, Shengwang Du
Summary: Quantum state tomography (QST) is crucial for experimental quantum information processing, and optical neural networks (ONN) show promising potential in photonic polarization qubit QST.
ADVANCED PHOTONICS
(2022)
