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High-dimensional quantum information processing on programmable integrated photonic chips

Science China(Information Sciences) 2023年第8期66卷 5-22页

作者： Yulin CHI Yue YU Qihuang GONG Jianwei WANG State Key Laboratory for Mesoscopic Physics School of Physics Peking University Frontiers Science Center for Nano-optoelectronics and Collaborative Innovation Center of quantum Matter Peking University Peking University Yangtze Delta Institute of Optoelectronics Collaborative Innovation Center of Extreme Optics Shanxi University Hefei National Laboratory

This study reviews the recent progress of high-dimensional quantum information processing with photons. We first introduce the basic language of high-dimensional quantum information, including the representation of quantum dits(qudits), unitary operations of qudit states, and the general format of quantum algorithms with qudits. We discuss experimental implementations of high-dimensional quantum information processing and quantum computing in photonic systems, particularly in integrated quantum photonic platforms. We also discuss how qudit-based quantum photonic devices and systems can be adopted for further improving qubit-based quantum computation and quantum simulation.

关键词： high-dimensional quantum information processing quantum computation integrated quantum photonics

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Thermally reconfigurable quantum photonic circuits at telecom wavelength by femtosecond laser micromachining

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Light(Science & Applications) 2015年第1期4卷 72-78页

作者： Fulvio Flamini Lorenzo Magrini Adil S Rab Nicolo Spagnolo Vincenzo D’Ambrosio Paolo Mataloni Fabio Sciarrino Tommaso Zandrini Andrea Crespi Roberta Ramponi Roberto Osellame Dipartimento di Fisica-Sapienza Universita di Roma P.le Aldo Moro 5I-00185 RomaItaly Istituto di Fotonica e Nanotecnologie-Consiglio Nazionale delle Ricerche(IFNCNR) P.za Leonardo da Vinci32I-20133 MilanoItaly Dipartimento di Fisica-Politecnico di Milano P.za Leonardo da Vinci32I-20133 MilanoItaly

The importance of integrated quantum photonics in the telecom band is based on the possibility of interfacing with the optical network infrastructure that was developed for classical *** this framework,femtosecond laser-written integrated photonic circuits,which have already been assessed for use in quantum information experiments in the 800-nm wavelength range,have great *** fact,these circuits,being written in glass,can be perfectly mode-matched at telecom wavelength to the in/out coupling fibers,which is a key requirement for a low-loss processing node in future quantum optical *** addition,for several applications,quantum photonic devices must be dynamically ***,we experimentally demonstrate the high performance of femtosecond laser-written photonic circuits for use in quantum experiments in the telecom band,and we demonstrate the use of thermal shifters,which were also fabricated using the same femtosecond laser,to accurately tune such ***-of-the-art manipulation of single-and two-photon states is demonstrated,with fringe visibilities greater than 95%.The results of this work open the way to the realization of reconfigurable quantum photonic circuits based on this technological platform.

关键词： femtosecond laser micromachining integrated quantum photonics thermal shifters tunable optical circuits

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Highlighting photonics: looking into the next decade

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eLight 2021年第1期1卷 2-13页

作者： Zhigang Chen Mordechai Segev The MOE Key Laboratory of Weak-Light Nonlinear photonics TEDA Applied Physics Institute and School of PhysicsNankai UniversityTianjin 300457China Department of Physics and Astronomy San Francisco State UniversitySan FranciscoCA 94132USA Physics Department Electrical Engineering Departmentand Solid State InstituteTechnionHaifaIsrael.

Let there be light-to change the world we want to be!Over the past several decades,and ever since the birth of the first laser,mankind has witnessed the development of the science of light,as light-based technologies have revolutionarily changed our *** to say,photonics has now penetrated into many aspects of science and technology,turning into an important and dynamically changing field of increasing interdisciplinary *** this inaugural issue of eLight,we highlight a few emerging trends in photonics that we think are likely to have major impact at least in the upcoming decade,spanning from integrated quantum photonics and quantum computing,through topological/non-Hermitian photonics and topological insulator lasers,to AI-empowered nanophotonics and photonic machine *** Perspective is by no means an attempt to summarize all the latest advances in photonics,yet we wish our subjective vision could fuel inspiration and foster excitement in scientific research especially for young researchers who love the science of light.

关键词： integrated quantum photonics Photonic quantum computing Topological photonics Non-Hermitian photonics Topological insulator lasers AI-empowered nanophotonics Photonic machine learning

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Chip-based quantum communications

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Journal of Semiconductors 2021年第9期42卷 29-36页

作者： Qingqing Wang Yun Zheng Chonghao Zhai Xudong Li Qihuang Gong Jianwei Wang State Key Laboratory for Mesoscopic Physics School of PhysicsPeking UniversityBeijing 100871China Frontiers Science Center for Nano-optoelectronics and Collaborative Innovation Center of quantum Matter Peking UniversityBeijing 100871China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China

quantum communications aim to share encryption keys between the transmitters and receivers governed by the laws of quantum *** quantum photonics offers significant advantages of dense integration,high stability and scalability,which enables a vital platform for the implementation of quantum information processing and quantum *** article reviews recent experimental progress and advances in the development of integrated quantum photonic devices and systems for quantum communications and quantum networks.

关键词： quantum communications quantum networks integrated quantum photonics

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