Article
Materials Science, Multidisciplinary
Qiheng Wei, Hailang Dai, Hongrui Shan, Honggen Li, Zhuangqi Cao, Xianfeng Chen
Summary: This study demonstrates a new method of solid-state ionic transport in an optical system using all-photonic memristors, achieving extremely stable multilevel storage weight and high signal-to-noise ratio. In all-photonic memristors, light signals serve as additional stimuli for large memory window and variation margin of multiple storage levels.
Article
Physics, Multidisciplinary
Zhi-Hao Li, Gui-Fang Yu, Ya-Xin Wang, Ze-Yu Xing, Ling-Wen Kong, Xiao-Qi Zhou
Summary: The Grover quantum search algorithm is a powerful tool for searching unsorted databases with a speed advantage over classical algorithms. However, it has a probability of failure in most cases. A new deterministic quantum search scheme proposed by Roy et al. shows potential to replace the traditional Grover algorithm without imposing additional requirements on the query Oracle.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Optics
Wen-Hao Zhou, Zhi-Qiang Jiao, Hang Li, Jun Gao, Xiao-Wei Wang, Ruo-Jing Ren, Xiao-Yun Xu, Lu-Feng Qiao, Xian-Min Jin
Summary: Researchers propose and experimentally demonstrate heralded multipartite entanglements on a three-dimensional photonic chip. By controlling the coherent evolution of a single photon in multiple spatial modes, they dynamically tune the high-order W-states of different orders in a single photonic chip. Using an effective witness, they observe and verify 61-partite quantum entanglements in a 121-site photonic lattice. These results offer insights into the accessible size of quantum entanglements and may advance large-scale quantum information processing applications.
Article
Physics, Applied
Zheheng Xu, David Burghoff
Summary: A scheme utilizing band-structure-engineered nanostructures to implement nonlinear activation functions has been proposed, achieving fast optical response with low intensity threshold in a relatively small footprint. Improved PNN training performance in handwritten pattern recognition is demonstrated when using the simulated nonlinear activation function, showing potential for creating deep fully connected PNNs.
PHYSICAL REVIEW APPLIED
(2022)
Article
Optics
Si-Jing Tao, Qin-Qin Wang, Zhe Chen, Wei-Wei Pan, Shang Yu, Geng Chen, Xiao-Ye Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo
Summary: Recent research has shown that disorders in quantum systems may have an enhanced effect on entanglement generation, independent of initial conditions and physical platforms. The challenge lies in achieving maximal entanglement due to the limited coherence time in disordered quantum systems. Through classic optimization algorithms, high-entanglement hybrid states can be achieved at any given time step, inspiring the development of well-controlled entanglement generators for quantum computation and information tasks.
Article
Engineering, Electrical & Electronic
Soumi Saha, Subhradeep Pal, Sounak Roy, Parikshit Sahatiya, Surya Shankar Dan
Summary: This paper reports the fabrication and characterization of a cerium dioxide (CeO2)-based gated memristor with metal electrodes. The device exhibits adjustable set voltage, high R-OFF/R-ON ratio, outstanding cyclic stability and data retention. Control of the set voltage is achieved by manipulating the gate voltage.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Optics
Xu-Lin Zhang, Feng Yu, Ze-Guo Chen, Zhen-Nan Tian, Qi-Dai Chen, Hong-Bo Sun, Guancong Ma
Summary: The study successfully demonstrates non-Abelian braiding by controlling the geometric-phase matrix in a photonic chip, observing its key characteristics crucial for realizing quantum logics. The experiment showed the swapping of photon dwell sites in both classical-light and single-photon experiments, indicating the potential for implementing non-Abelian physics in photonics. The proposed on-chip photonic system opens up possibilities for studying non-Abelian physics and may lead to the development of next-generation non-Abelian photonic devices.
Article
Chemistry, Physical
Wenxiao Wang, Feifei Yin, Hongsen Niu, Yang Li, Eun Seong Kim, Nam Young Kim
Summary: This study demonstrates the potential of photonic in-memory computing by using a tantalum pentoxide-based memristor as a non-volatile memory. The controllable transition from write-once-read-many-times (WORM) memory to resistive random-access memory (RRAM) is achieved by changing the depositional sequence. In situ photonic Boolean logic operations (AND/OR) are achieved in the RRAM device by combining light and electric signals, showing superior photonic in-memory computing potential.
Article
Optics
Gen-Sheng Ye, Biao Xu, Yue Chang, Shuai Shi, Tao Shi, Lin Li
Summary: By using an entanglement filter based on Rydberg atoms, researchers have demonstrated the transmission of desired photonic entangled states while blocking unwanted ones. Near-perfect photonic entanglement can be extracted from a noisy input with arbitrarily low initial fidelity.
Article
Chemistry, Multidisciplinary
Yi-Jun Chang, Yong-Heng Lu, Ying-Yue Yang, Yao Wang, Wen-Hao Zhou, Xiao-Wei Wang, Xian-Min Jin
Summary: This study experimentally demonstrates the inhibition and reconstruction of Zener tunneling in photonic honeycomb lattices. By structurally controlling Zener tunneling, the coherence of photons is protected, paving the way for flexible quantum engineering of large-scale artificial quantum materials.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Clarissa L. M. Hofmann, Stefan Fischer, Emil H. Eriksen, Benedikt Blaesi, Christian Reitz, Deniz Yazicioglu, Ian A. Howard, Bryce S. Richards, Jan Christoph Goldschmidt
Summary: An experimental validation of the effects of photonic structures on upconversion, and the proposal of a theoretical model to describe these effects, have opened up new possibilities for optimizing photonic structure designs.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
Jia-Liang Tang, Gabriel Alvarado Barrios, Enrique Solano, Francisco Albarran-Arriagada
Summary: We investigated the tunable control of non-Markovianity in a bosonic mode by coupling it to auxiliary qubits in a thermal reservoir. By considering the Tavis-Cummings model for a single cavity mode and auxiliary qubits, we studied the manipulation of dynamical non-Markovianity with respect to the qubit frequency. Our findings reveal that controlling the auxiliary systems can influence the cavity dynamics as a time-dependent decay rate. Finally, we demonstrate how this tunable time-dependent decay rate can be used to engineer bosonic quantum memristors, which are essential for developing neuromorphic quantum technologies.
Review
Quantum Science & Technology
Liangliang Lu, Xiaodong Zheng, Yanqing Lu, Shining Zhu, Xiao-Song Ma
Summary: Quantum photonic systems have achieved remarkable success in computing and communication, with photons as carriers of quantum information being highly robust against decoherence. Integrated photonics, compatible with CMOS fabrication, has significant advantages in large-scale quantum information processing. A key task is to improve the performance of individual components and integrate them on a common substrate.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Multidisciplinary Sciences
Shulin Wang, Chengzhi Qin, Lange Zhao, Han Ye, Stefano Longhi, Peixiang Lu, Bing Wang
Summary: This paper introduces a new class of reconfigurable linear optics circuits harnessing Floquet LZT, which has versatile applications in temporal beam control, signal processing, quantum simulations, and information processing.
Article
Physics, Multidisciplinary
Yang Wang, Xinyao Yu, Shichuan Xue, Yizhi Wang, Junwei Zhan, Chao Wu, Pingyu Zhu, Qilin Zheng, Miaomiao Yu, Yingwen Liu, Xiaogang Qiang, Junjie Wu, Xuejun Yang, Ping Xu
Summary: This study explores the application of time-reversal symmetry breaking quantum walk models in quantum transport and demonstrates related experiments on a silicon photonic chip, showcasing the advantages in perfect state transfer, quantum switch, and transport speedup.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Quantum Science & Technology
Giulia Rubino, Lee A. Rozema, Francesco Massa, Mateus Araujo, Magdalena Zych, Caslav Brukner, Philip Walther
Summary: The study shows that not all physical processes in the quantum realm have a definite causal structure. The demonstration of indefinite temporal order outside of quantum formalism provides experimental evidence of correlations in nature that are incompatible with the assumptions of locality and definite temporal order.
Article
Quantum Science & Technology
Francesco Hoch, Simone Piacentini, Taira Giordani, Zhen-Nan Tian, Mariagrazia Iuliano, Chiara Esposito, Anita Camillini, Gonzalo Carvacho, Francesco Ceccarelli, Nicolo Spagnolo, Andrea Crespi, Fabio Sciarrino, Roberto Osellame
Summary: This study demonstrates the application of a compact and reconfigurable 3D-integrated platform in photonic Boson Sampling. By conducting 3- and 4-photon experiments, the feasibility and scalability of the platform are shown, providing a viable direction for hybrid computing with photonic processors.
NPJ QUANTUM INFORMATION
(2022)
Article
Optics
Sebastian Haegele, Giacomo Corrielli, Matej Hejda, Luc Duempelmann, Roland A. Terborg, Roberto Osellame, Valerio Pruneri
Summary: Quantitative phase imaging and holography can detect phase changes with high sensitivity, such as surface non-uniformities or refractive index structures in a sample. This work proposes and demonstrates a novel lens-free phase imaging technique, utilizing phase-shifting interferometry and multi-angle illumination, to enhance axial resolution and image quality, achieving ultra-high phase sensitivity.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Optics
Zhu-Bo Wang, Chenyue Gu, Xin-Xin Hu, Ya-Ting Zhang, Ji-Zhe Zhang, Gang Li, Xiao-Dong He, Xu-Bo Zou, Chun-Hua Dong, Guang-Can Guo, Chang-Ling Zou
Summary: In this study, the dynamics of single atoms in a modified optical dipole trap with a backward propagating dipole trap beam were experimentally investigated. The collision rate between two atoms was changed by six times. The theoretical model predicts high probabilities of few-atom loading rates under appropriate experimental conditions. This work provides an alternative approach for controlling the dynamics of a few atoms in a dipole trap and studying the collective quantum optical effects of few atoms.
Article
Optics
P. Schiansky, T. Stroemberg, D. Trillo, V. Saggio, B. Dive, M. Navascues, P. Walther
Summary: In quantum mechanics, the reversibility of time evolution is based on the unitary nature. Recent experiments have demonstrated protocols for reverting unknown unitaries even in the case of unknown interactions with the target system, although these protocols are probabilistic. In this study, we show that quantum physics allows for deterministic time-reversal by taking advantage of the non-commuting nature of quantum operators. We present a recursive protocol with an arbitrarily high success probability for two-level quantum systems and achieve an average rewinding fidelity of over 95% using a photonic platform. Our protocol, which requires no knowledge of the quantum process to be rewound, is optimal in its running time and brings quantum rewinding into practical relevance.
Article
Education & Educational Research
Tao Tu, Chuan-Feng Li, Jin-Shi Xu, Guang-Can Guo
Summary: In this study, we investigate the use of delta functions in solving problems in the context of quantum mechanics. We analyze students' solutions and conduct interviews to uncover the difficulties they encounter. Common challenges include expressing position eigenstates using delta functions, expressing orthonormality of eigenfunctions with continuous spectra using delta functions, dealing with boundary conditions for delta function potentials, and calculating integrals involving delta functions. We also compare the similarities and differences in the use of delta functions in electrostatics and in quantum mechanics, and discuss the potential pedagogical implications of our findings.
PHYSICAL REVIEW PHYSICS EDUCATION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
M. Marini, A. Nardini, R. Martinez Vazquez, C. Conci, M. Bouzin, M. Collini, R. Osellame, G. Cerullo, B. S. Kariman, M. Farsari, E. Kabouraki, M. T. Raimondi, G. Chirico
Summary: Non-linear excitation microscopy has advantages over conventional confocal techniques for in-vivo imaging, but tissue penetration can still be problematic. This study develops and tests fibroblast cell culture plano-convex microlenses for non-linear imaging of biological tissue. The microlenses can be used individually or in an array, and they provide magnified fluorescence images without substantially affecting the signal-to-noise ratio. These results pave the way for optical in-vivo inspection of biological processes using implanted micro-optics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Optics
Paulo Henrique Dias Ferreira, Vinicius Tribuzi, Roberto Osellame, Filippo Ghiglieno
Summary: This study presents a simple and non-destructive interferometric technique for measuring propagation loss in single-mode optical glass waveguides using the Fabry-Perot cavity effect. Experimental results show that the technique accurately determines the propagation loss, and the measured value is consistent with conventional characterization methods. This technique also provides independent measurements from coupling losses, making it easier and reliable for post-manufacturing characterization.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Valeria Cimini, Mauro Valeri, Emanuele Polino, Simone Piacentini, Francesco Ceccarelli, Giacomo Corrielli, Nicolo Spagnolo, Roberto Osellame, Fabio Sciarrino
Summary: This study proposes a model-free and deep-learning-based approach to efficiently implement Bayesian quantum metrology tasks without relying on precise knowledge of the system model. A neural network is trained directly on experimental data to learn the multiparameter Bayesian update, and a reinforcement learning algorithm provides feedback to set the system at its optimal working point. Experimental results demonstrate higher estimation performances compared to standard methods, showcasing the strength of combining these two black-box algorithms on an integrated photonic circuit.
ADVANCED PHOTONICS
(2023)
Article
Physics, Multidisciplinary
Mauro Valeri, Valeria Cimini, Simone Piacentini, Francesco Ceccarelli, Emanuele Polino, Francesco Hoch, Gabriele Bizzarri, Giacomo Corrielli, Nicolo Spagnolo, Roberto Osellame, Fabio Sciarrino
Summary: By using quantum probes and adaptive learning techniques, we successfully achieved simultaneous measurement of three optical phases in a programmable integrated photonic circuit under limited resources. These results demonstrate the possibility of successfully combining different fundamental methodologies towards transitioning to quantum sensor applications.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Optics
Xing-Yu Zhu, Tao Tu, Guang-Can Guo, Chuan-Feng Li
Summary: In this paper, a strategy for measuring the parity of two spin qubits using modulated pulses and a superconducting resonator as a detector is proposed. It is found that the distinction between spin-parity states can be achieved with high fidelity within a short measurement time, enabling the deterministic preparation of various spin entangled states. The method can also be applied to parity measurements and surface codes of multiple spin qubits. These results pave the way for fault-tolerant quantum computation with spin qubits.
Meeting Abstract
Cell & Tissue Engineering
Alessandra Nardini, Claudio Conci, Emanuela Jacchetti, Giulio Cerullo, Rebeca Martinez Vazquez, Roberto Osellame, Gianni Ciofani, Manuela Teresa Raimondi
TISSUE ENGINEERING PART A
(2022)