Article
Optics
Jun Liu, Xiaoshu Zhu, Yifan Zhou, Xiujuan Zou, Zhaofu Qin, Shuming Wang, Shining Zhu, Zhenlin Wang
Summary: Based on metasurfaces, the information density and stability of the quantum imaging system can be further improved. This work demonstrates that two patterns on a high-efficiency dielectric metasurface can be remotely switched via polarization-entangled photon pairs, and the information carried by quantum light can be distinguished from background noise using the time-correlated property of entangled photon pairs. These findings highlight the potential of phase manipulation of quantum light with metasurfaces in quantum imaging, quantum state tomography, and real-world applications.
Article
Physics, Multidisciplinary
Qi Liu, Ling-Na Wu, Jia-Hao Cao, Tian-Wei Mao, Xin-Wei Li, Shuai-Feng Guo, Meng Khoon Tey, Li You
Summary: The study presents a method applicable to cyclic systems for implementing nonlinear interferometry without requiring time reversal. By utilizing quasiperiodic spin mixing dynamics in a three-mode Rb-87 atomic spinor condensate, a closed-loop nonlinear interferometer is achieved, leading to a significant metrological gain.
Review
Quantum Science & Technology
Zhihui Yan, Liang Wu, Xiaojun Jia, Changde Xie, Kunchi Peng
Summary: A quantum network consists of quantum channels and quantum nodes, with the interaction between non-classical optical modes and quantum nodes, and quantum entanglement among multiple distant quantum nodes being essential building blocks. The practical applications of quantum network require multipartite non-classical states of optical modes that can directly interact with atomic ensembles, and a key goal is to unconditionally generate and store multipartite entangled states in atomic ensembles. Recent developments include creating multipartite continuous-variable polarization entangled optical modes and constructing a scalable quantum network with deterministic entanglement among multiple quantum memories.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Nanoscience & Nanotechnology
Ying Li, Ya-Feng Jiao, Jing-Xue Liu, Adam Miranowicz, Yun-Lan Zuo, Le-Man Kuang, Hui Jing
Summary: This research proposes a method to achieve a coherent switch of optomechanical entanglement using polarized light. By tuning the polarizations of the driving field, the optomechanical coupling can be controlled, enabling the coherent switching of quantum entanglement.
Article
Quantum Science & Technology
Zhen-Biao Yang, Pei-Rong Han, Xin-Jie Huang, Wen Ning, Hekang Li, Kai Xu, Dongning Zheng, Heng Fan, Shi-Biao Zheng
Summary: The study demonstrates the implementation of a Universal Quantum Cloning Machine (UQCM) in a superconducting circuit, which achieves the optimal fidelity of producing two copies of any input qubit through delicately tailored nonclassical correlations. The measured entanglements are found to be independent of the input state, revealing a universal quantum behavior of the UQCM that was not previously known. Additionally, the experiment realizes deterministic and individual cloning, distinguishing it from previous UQCMs which were either probabilistic or did not achieve true cloning of individual qubits.
NPJ QUANTUM INFORMATION
(2021)
Article
Optics
W. F. Balthazar, D. G. Braga, V. S. Lamego, M. H. M. Passos, J. A. O. Huguenin
Summary: The paper introduces an all-optical setup to generate various X states using spin-orbit modes and a high intensity laser beam. By simulating spin-orbit tomography, the researchers were able to reconstruct the density matrix and study discord and concurrence for different states, showing good agreement with theoretical predictions. Additionally, two different optical circuits were proposed for preparing the single-photon spin-orbit X state.
Article
Computer Science, Hardware & Architecture
Chonggang Wang, Akbar Rahman
Summary: This article discusses the application of quantum information technology in communication and computing in the evolution from 5G to 6G, and how QIT can improve the performance and security of 6G systems.
IEEE WIRELESS COMMUNICATIONS
(2022)
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, Nuclear
Harvendra Singh
Summary: In this study, we estimate the net information exchange between adjacent quantum subsystems living holographically on the boundary of AdS space-time. We find that the information flow between entangled subsystems is reduced in excited states, with ground states allowing maximum information flow. Particularly for CFT2, an increase in entropy is shown to be detrimental to information exchange by a quantum dot. Additionally, we observe a reduction in circuit (CV) complexity in the presence of excitations for small times.
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2021)
Article
Chemistry, Multidisciplinary
Xujing Liu, Yinhui Kan, Shailesh Kumar, Liudmilla F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov, Changying Zhao, Sergey I. Bozhevolnyi
Summary: This article introduces a new design for ultracompact single-photon sources, which can generate linearly polarized vortex beams using quantum emitter-coupled metasurfaces. The authors successfully demonstrate on-chip single-photon generation and realize the multiplexing of different topological charges of orthogonal linearly polarized single photons through multiple channels, demonstrating their entanglement. This research suggests that ultracompact quantum emitter-coupled metasurfaces have the potential to be a new quantum optics platform for chip-integrated high-dimensional single-photon sources.
ADVANCED MATERIALS
(2023)
Article
History & Philosophy Of Science
Rasmus Jaksland
Summary: This paper discusses the relationship between distance and entanglement in world-making, highlighting the importance of entanglement as a world-making relation and how distance can be recovered from entanglement, providing theoretical support for entanglement fundamentalism.
Article
Nanoscience & Nanotechnology
Panpan Yu, Yifan Liu, Yijing Wu, Ziqiang Wang, Yinmei Li, Lei Gong
Summary: This paper demonstrates dynamic vectorial holographic projections using a scattering material-based reconfigurable hologram. The scattering material transforms the incident light into a speckle field with space-variant polarization states, and wavefront control enables the reconstruction of arbitrary vectorial images with reconfigurability.
Article
Astronomy & Astrophysics
V Giantsos, N. Tetradis
Summary: We compute the holographic entanglement entropy of a thermalized CFT on a time-dependent background in four dimensions. We identify a volume term corresponding to the thermal entropy of the CFT and terms proportional to the proper area of the entangling surface that are associated with strongly entangled degrees of freedom or expansion.
Article
Materials Science, Multidisciplinary
T. Niermann, L. Niermann, M. Narodovitch, M. Lehmann
Summary: In this study, two methods for estimating electric field strength across semiconductor heterostructure quantum wells were thoroughly investigated. Ways to incorporate polarization effects into combined strain and multislice simulations were developed. It was found that errors estimated from detection noise of single measurements mostly underestimate the true error.
Article
Computer Science, Hardware & Architecture
Santiago Rodrigo, Sergi Abadal, Eduard Alarcon, Medina Bandic, Hans van Someren, Carmen G. Almudever
Summary: This article examines the scalability of quantum computing for its most powerful applications, highlighting the potential of multicore architectures and the challenges posed by quantum communications. The integration of communications and computation in the core of the design is proposed as a solution to the existing challenges, with the hope of unleashing the full potential of quantum computing.
Article
Physics, Multidisciplinary
Thomas Roger, Sara Restuccia, Ashley Lyons, Daniel Giovannini, Jacquiline Romero, John Jeffers, Miles Padgett, Daniele Faccio
PHYSICAL REVIEW LETTERS
(2016)
Article
Multidisciplinary Sciences
Matteo Clerici, Gabriel C. Spalding, Ryan Warburton, Ashley Lyons, Constantin Aniculaesei, Joseph M. Richards, Jonathan Leach, Robert Henderson, Daniele Faccio
Article
Optics
Ashley Lyons, Thomas Roger, Niclas Westerberg, Stefano Vezzoli, Calum Maitland, Jonathan Leach, Miles J. Padgett, Daniele Faccio
Article
Multidisciplinary Sciences
Ashley Lyons, George C. Knee, Eliot Bolduc, Thomas Roger, Jonathan Leach, Erik M. Gauger, Daniele Faccio
Article
Chemistry, Analytical
Lucrezia Cester, Ashley Lyons, Maria Chiara Braidotti, Daniele Faccio
Article
Optics
Ashley Lyons, Francesco Tonolini, Alessandro Boccolini, Audrey Repetti, Robert Henderson, Yves Wiaux, Daniele Faccio
Article
Physics, Applied
G. Musarra, A. Lyons, E. Conca, Y. Altmann, F. Villa, F. Zappa, M. J. Padgett, D. Faccio
PHYSICAL REVIEW APPLIED
(2019)
Article
Optics
Alex Turpin, Gabriella Musarra, Valentin Kapitany, Francesco Tonolini, Ashley Lyons, Ilya Starshynov, Federica Villa, Enrico Conca, Francesco Fioranelli, Roderick Murray-Smith, Daniele Faccio
Article
Optics
Jack Radford, Ashley Lyons, Francesco Tonolini, Daniele Faccio
Article
Multidisciplinary Sciences
C. Callenberg, A. Lyons, D. den Brok, A. Fatima, A. Turpin, V. Zickus, L. Machesky, J. Whitelaw, D. Faccio, M. B. Hullin
Summary: The sensor fusion approach combines data from a single-photon-avalanche-diode (SPAD) array with high temporal precision and a standard CMOS camera with high spatial resolution to reconstruct time-resolved images with significantly higher spatial resolution. This technique opens up new possibilities for applications in LIDAR and FLIM imaging.
SCIENTIFIC REPORTS
(2021)
Article
Quantum Science & Technology
Bienvenu Ndagano, Hugo Defienne, Ashley Lyons, Ilya Starshynov, Federica Villa, Simone Tisa, Daniele Faccio
NPJ QUANTUM INFORMATION
(2020)
Article
Physics, Multidisciplinary
Alex Turpin, Valentin Kapitany, Jack Radford, Davide Rovelli, Kevin Mitchell, Ashley Lyons, Ilya Starshynov, Daniele Faccio
Summary: Echo location is a broad approach to imaging and sensing that requires scanning of the scene to provide spatial location of echo origin points. Temporal information encoded in return echoes reflected multiple times within a scene is sufficient to render a 3D image, as demonstrated in experiments with radio frequency and acoustic waves.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Charles Altuzarra, Ashley Lyons, Guanghui Yuan, Christy Simpson, Thomas Roger, Jonathan S. Ben-Benjamin, Daniele Faccio
Article
Optics
Ashley Lyons, Dikla Oren, Thomas Roger, Vassili Savinov, Joao Valente, Stefano Vezzoli, Nikolay I. Zheludev, Mordechai Segev, Daniele Faccio