Chip Pub Date : 2023-09-01 Epub Date: 2023-05-16 DOI: 10.1016/j.chip.2023.100052

Haorui Luo , Wenrui Hu , Yongxin Guo

引用次数: 1

Frequency-tunable microwave quantum light source based on superconducting quantum circuits 基于超导量子电路的频率可调谐微波量子光源

Chip Pub Date : 2023-09-01 Epub Date: 2023-08-19 DOI: 10.1016/j.chip.2023.100063

Yan Li , Zhiling Wang , Zenghui Bao , Yukai Wu , Jiahui Wang , Jize Yang , Haonan Xiong , Yipu Song , Hongyi Zhang , Luming Duan

{"title":"Frequency-tunable microwave quantum light source based on superconducting quantum circuits","authors":"Yan Li , Zhiling Wang , Zenghui Bao , Yukai Wu , Jiahui Wang , Jize Yang , Haonan Xiong , Yipu Song , Hongyi Zhang , Luming Duan","doi":"10.1016/j.chip.2023.100063","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100063","url":null,"abstract":"<div><p>A non-classical light source is essential for implementing a wide range of quantum information processing protocols, including quantum computing, networking, communication and metrology. In the microwave regime, propagating photonic qubits, which transfer quantum information between multiple superconducting quantum chips, serve as building blocks for large-scale quantum computers. In this context, spectral control of propagating single photons is crucial for interfacing different quantum nodes with varied frequencies and bandwidths. Here a deterministic microwave quantum light source was demonstrated based on superconducting quantum circuits that can generate propagating single photons, time-bin encoded photonic qubits and qudits. In particular, the frequency of the emitted photons can be tuned in situ as large as 200 MHz. Even though the internal quantum efficiency of the light source is sensitive to the working frequency, it is shown that the fidelity of the propagating photonic qubit can be well preserved with the time-bin encoding scheme. This work thus demonstrates a versatile approach to realizing a practical quantum light source for future distributed quantum computing.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 3","pages":"Article 100063"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Circuits and devices for standalone large-scale integration (LSI) chips and Internet of Things (IoT) applications: a review 用于独立大规模集成（LSI）芯片和物联网（IoT）应用的电路和设备：综述

Chip Pub Date : 2023-09-01 Epub Date: 2023-04-27 DOI: 10.1016/j.chip.2023.100048

Takaya Sugiura , Kenta Yamamura , Yuta Watanabe , Shiun Yamakiri , Nobuhiko Nakano

引用次数: 5

Construction and electrical control of ultrahigh-density organic memory arrays at cryogenic temperature 低温下超高密度有机存储器阵列的构建与电气控制

Chip Pub Date : 2023-09-01 Epub Date: 2023-08-15 DOI: 10.1016/j.chip.2023.100062

Mingjun Zhong , Jie Li , Yajie Zhang , Xin Li , Zhen Xu , Qian Shen , Xue Zhang , Yongfeng Wang

{"title":"Construction and electrical control of ultrahigh-density organic memory arrays at cryogenic temperature","authors":"Mingjun Zhong , Jie Li , Yajie Zhang , Xin Li , Zhen Xu , Qian Shen , Xue Zhang , Yongfeng Wang","doi":"10.1016/j.chip.2023.100062","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100062","url":null,"abstract":"<div><p><strong>Investigation into the structural and magnetic properties of organic molecules at cryogenic temperature is beneficial for reducing molecular vibration and stabilizing magnetization, and is of great importance for constructing novel spintronics devices of better performance and scaling the device size down to nanoscale. In order</strong> t<strong>o explore the possibility of fabricating molecule-based memory chips of ultrahigh density, two-dimensional close-packed molecular arrays with carboxylic acid molecules were constructed in the current work and the magnetic properties in a low-temperature scanning tunneling microscope were also investigated. The results demonstrated that each nonmagnetic molecule can be controllably and independently switched into a stable spin-carrying state at 4 K by applying a voltage pulse with atomic resolution. Benefiting from the small size of a single molecule as the basic storage bit, the two-dimensional molecular arrays allowing controllable electrical manipulations on each molecule can behave as a platform of memory chip with an ultrahigh storage density of ∼320 terabytes (Tb) (or ∼2500 terabits) per square inch. This work highlights the potential and advantage of employing organic molecules in developing future cryogenic information storage techniques and devices at nanoscale.</strong></p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 3","pages":"Article 100062"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Federated selective aggregation for on-device knowledge amalgamation 用于设备上知识融合的联邦选择性聚合

Chip Pub Date : 2023-09-01 Epub Date: 2023-06-01 DOI: 10.1016/j.chip.2023.100053

Donglin Xie , Ruonan Yu , Gongfan Fang , Jiaqi Han , Jie Song , Zunlei Feng , Li Sun , Mingli Song

{"title":"Federated selective aggregation for on-device knowledge amalgamation","authors":"Donglin Xie , Ruonan Yu , Gongfan Fang , Jiaqi Han , Jie Song , Zunlei Feng , Li Sun , Mingli Song","doi":"10.1016/j.chip.2023.100053","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100053","url":null,"abstract":"<div><p>In the current work, we explored a new knowledge amalgamation problem, termed Federated Selective Aggregation for on-device knowledge amalgamation (FedSA). FedSA aims to train an on-device student model for a new task with the help of several decentralized teachers whose pre-training tasks and data are different and agnostic. The motivation to investigate such a problem setup stems from a recent dilemma of model sharing. Due to privacy, security or intellectual property issues, the pre-trained models are, however, not able to be shared, and the resources of devices are usually limited. The proposed FedSA offers a solution to this dilemma and makes it one step further, again, the method can be employed on low-power and resource-limited devices. To this end, a dedicated strategy was proposed to handle the knowledge amalgamation. Specifically, the student-training process in the current work was driven by a novel saliency-based approach which adaptively selects teachers as the participants and integrated their representative capabilities into the student. To evaluate the effectiveness of FedSA, experiments on both single-task and multi-task settings were conducted. The experimental results demonstrate that FedSA could effectively amalgamate knowledge from decentralized models and achieve competitive performance to centralized baselines.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 3","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photoswitchable quantum electrodynamics in a hybrid plasmonic quantum emitter 混合等离子体量子发射器中的光开关量子电动力学

Chip Pub Date : 2023-09-01 Epub Date: 2023-08-03 DOI: 10.1016/j.chip.2023.100060

Yuan Liu , Hongwei Zhou , Peng Xue , Linhan Lin , Hong-Bo Sun

{"title":"Photoswitchable quantum electrodynamics in a hybrid plasmonic quantum emitter","authors":"Yuan Liu , Hongwei Zhou , Peng Xue , Linhan Lin , Hong-Bo Sun","doi":"10.1016/j.chip.2023.100060","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100060","url":null,"abstract":"<div><p>The design and preparation of quantum states free from environmental decohering effects is critically important for the development of on-chip quantum systems with robustness. One promising strategy is to harness quantum state superposition to construct decoherence-free subspace (DFS), which is termed dark state. Typically, the excitation of dark states relies on anti-phase-matching on two qubits and the inter-qubit distance is of wavelength scale, which limits the development of compact quantum chips. In the current work, a hybrid plasmonic quantum emitter was proposed, which was composed of strongly correlated quantum emitters intermediated by a plasmonic nanocavity. Through turning the plasmonic loss from drawback into advantage, the anti-phase-matching rule was broken by rapidly decaying the superposed bright state and preparing a sub-100 nm dark state with decay rate reduced by 3 orders of magnitudes. More interestingly, the dark state could be optically switched to a single-photon emitter with enhanced brightness through photon-blockade, with the quantum second order correlation function at zero delay showing a wide range of tunability down to 0.02.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 3","pages":"Article 100060"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep‐learning based on‐chip rapid spectral imaging with high spatial resolution 基于深度学习的高空间分辨率芯片快速光谱成像

Chip Pub Date : 2023-06-01 Epub Date: 2023-04-07 DOI: 10.1016/j.chip.2023.100045

Jiawei Yang , Kaiyu Cui , Yidong Huang , Wei Zhang , Xue Feng , Fang Liu

{"title":"Deep‐learning based on‐chip rapid spectral imaging with high spatial resolution","authors":"Jiawei Yang , Kaiyu Cui , Yidong Huang , Wei Zhang , Xue Feng , Fang Liu","doi":"10.1016/j.chip.2023.100045","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100045","url":null,"abstract":"<div><p>Spectral imaging extends the concept of traditional color cameras to capture images across multiple spectral channels and has broad application prospects. Conventional spectral cameras based on scanning methods suffer from the drawbacks of low acquisition speed and large volume. On-chip computational spectral imaging based on metasurface filters provides a promising scheme for portable applications, but endures long computation time due to point-by-point iterative spectral reconstruction and mosaic effect in the reconstructed spectral images. In this study, on-chip rapid spectral imaging was demonstrated, which eliminated the mosaic effect in the spectral image by deep-learning-based spectral data cube reconstruction. The experimental results show that 4 orders of magnitude faster than the iterative spectral reconstruction were achieved, and the fidelity of the spectral reconstruction for the standard color plate was over 99% for a standard color board. In particular, video-rate spectral imaging was demonstrated for moving objects and outdoor driving scenes with good performance for recognizing metamerism, where the concolorous sky and white cars can be distinguished via their spectra, showing great potential for autonomous driving and other practical applications in the field of intelligent perception.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 2","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50200014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

On-chip photonic spatial-temporal descrambler 片上光子时空解扰器

Chip Pub Date : 2023-06-01 Epub Date: 2023-03-07 DOI: 10.1016/j.chip.2023.100043

Wenkai Zhang , Xueyi Jiang , Wentao Gu , Junwei Cheng , Hailong Zhou , Jianji Dong , Dongmei Huang , Xinliang Zhang

{"title":"On-chip photonic spatial-temporal descrambler","authors":"Wenkai Zhang , Xueyi Jiang , Wentao Gu , Junwei Cheng , Hailong Zhou , Jianji Dong , Dongmei Huang , Xinliang Zhang","doi":"10.1016/j.chip.2023.100043","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100043","url":null,"abstract":"<div><p>As an indispensable part to compensate for the signal crosstalk in fiber communication systems, conventional digital multi-input multi-output (MIMO) signal processor is facing the challenges of high computational complexity, high power consumption and relatively low processing speed. The optical MIMOenables the best use of light and has been proposed to remedy this limitation. However, the currently existing optical MIMO methods are all restricted to the spatial dimension, while the temporal dimension is neglected. Here, an on-chip spatial-temporal descrambler with four channels were devised and its MIMO functions were experimentally verified simultaneously in both spatial and temporal dimensions. The spatial crosstalk of single-channel descrambler and four-channel descrambler is respectively less than -21 dB and -18 dB, and the time delay is simultaneously compensated successfully. Moreover, a more universal model extended to mode-dependent loss and gain (MDL) compensation was further developed, which is capable of being cascaded for the real optical transmission system. The first attempt at photonic spatial-temporal descrambler enriched the varieties of optical MIMO, and the proposed scheme provided a new opportunity for all-optical MIMO signal processing.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 2","pages":"Article 100043"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50200013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Electric-field-induced quasi-phase-matched three-wave mixing in silicon-based superlattice-on-insulator integrated circuits 绝缘体上硅基超晶格集成电路中电场诱导的准相位匹配三波混频

Chip Pub Date : 2023-06-01 Epub Date: 2023-02-28 DOI: 10.1016/j.chip.2023.100042

Richard Soref (Life Fellow IEEE) , Francesco De Leonardis

{"title":"Electric-field-induced quasi-phase-matched three-wave mixing in silicon-based superlattice-on-insulator integrated circuits","authors":"Richard Soref (Life Fellow IEEE) , Francesco De Leonardis","doi":"10.1016/j.chip.2023.100042","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100042","url":null,"abstract":"<div><p>We present a theoretical investigation, based on the tight-binding Hamiltonian, of efficient electric-field-induced three-waves mixing (EFIM) in an undoped lattice-matched short-period superlattice (SL) that integrates quasi-phase-matched (QPM) SL straight waveguides and SL racetrack resonators on an opto-electronic chip. Periodically reversed DC voltage is applied to electrode segments on each side of the strip waveguide. The spectra of <span><math><msubsup><mrow><mi>χ</mi></mrow><mrow><mi>xxxx</mi></mrow><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow></msubsup></math></span> and of the linear susceptibility have been simulated as a function of the number of the atomic monolayers for “non-relaxed” heterointerfaces, and by considering all the transitions between valence and conduction bands. The large obtained values of<span><math><msubsup><mrow><mspace></mspace><mi>χ</mi></mrow><mrow><mi>xxxx</mi></mrow><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow></msubsup></math></span> make the <span><math><mrow><msub><mrow><mo>(</mo><mi>ZnS</mi><mo>)</mo></mrow><mn>3</mn></msub><mo>/</mo><msub><mrow><mo>(</mo><mrow><mi>S</mi><msub><mi>i</mi><mn>2</mn></msub></mrow><mo>)</mo></mrow><mn>3</mn></msub></mrow></math></span> short-period SL a good candidate for realizing large effective second-order nonlinearity, enabling future high-performance of the SLOI PICs and OEICs in the 1000-nm and 2000-nm wavelengths ranges. We have made detailed calculations of the efficiency of second-harmonic generation and of the performances of the optical parametric oscillator (OPO). The results indicate that the <span><math><mrow><msub><mrow><mo>(</mo><mi>ZnS</mi><mo>)</mo></mrow><mi>N</mi></msub><mo>/</mo><msub><mrow><mo>(</mo><mrow><mi>S</mi><msub><mi>i</mi><mn>2</mn></msub></mrow><mo>)</mo></mrow><mi>M</mi></msub></mrow></math></span> QPM is competitive with present PPLN technologies and is practical for classical and quantum applications.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 2","pages":"Article 100042"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50200015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-loss beam synthesizing network based on Epsilon-near-zero (ENZ) medium for on-chip antenna array 基于Epsilon近零（ENZ）介质的片上天线阵列低损耗波束合成网络

Chip Pub Date : 2023-06-01 Epub Date: 2023-04-16 DOI: 10.1016/j.chip.2023.100049

Hao Li , Ziheng Zhou , Yongzhi Zhao , Yue Li

{"title":"Low-loss beam synthesizing network based on Epsilon-near-zero (ENZ) medium for on-chip antenna array","authors":"Hao Li , Ziheng Zhou , Yongzhi Zhao , Yue Li","doi":"10.1016/j.chip.2023.100049","DOIUrl":"https://doi.org/10.1016/j.chip.2023.100049","url":null,"abstract":"<div><p>Beam synthesizing antenna arrays are essentially demanded for on-chip millimeter wave and terahertz systems. In order to achieve a particular radiation beam, specific amplitude and phase distributions are required for all the array elements, which is conventionally realized through a properly designed feeding network. In the current work, a low-loss feeding network design approach based on epsilon-near-zero (ENZ) medium was proposed for large-scale antenna arrays with different beam requirements. Due to the infinite wavelength within the ENZ medium, a newly-discovered stair-like resonant mode was adopted for assigning a uniform phase distribution to each element, while the amplitudes and positions of these elements were optimized for generating particular beams. To implement the design philosophy in a low-loss manner, a hollow air-filled waveguide near cutoff frequency was employed to emulate the ENZ medium, and the bulk silicon microelectromechanical systems (MEMS) micromachining technology was utilized for chip-scale integration. As a specific example, a low-sidelobe antenna array at 60.0 GHz was designed, which realized an impedance bandwidth of 2.57%, a gain of 13.6 dBi and a sidelobe level as low as -20.0 dB within the size of 0.5 × 3.4<em>λ</em><sub>0</sub><sup>2</sup>. This method is also compatible with a variety of applications, such as the high-directivity antenna array, non-diffractive Bessel beam antenna array, and so on. Based on this innovative concept of applying ENZ medium to the on-chip antenna array, it shows the advantages of simple structure and low loss for on-chip beam synthesis without complex lossy feeding networks.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"2 2","pages":"Article 100049"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50200498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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