Chinese Physics B最新文献_第8页

Remote Possibility of Post Aural Swelling as Nodular Hidradenoma: A Case Report. 耳后肿胀远期可能为结节状赘生物瘤：病例报告。

IF 0.6 4区物理与天体物理

Chinese Physics B Pub Date : 2024-02-01 Epub Date: 2023-08-07 DOI: 10.1007/s12070-023-04089-2

Lourdes Albina Siluvai Arulappan, Blessed Finney Eleza

引用次数: 0

Enhanced measurement precision with continuous interrogation during dynamical decoupling 在动态解耦过程中通过连续询问提高测量精度

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-02-01 DOI: 10.1088/1674-1056/ad1985

Jun Zhang, Peng Du, Lei Jing, Peng Xu, Li You, Wenxian Zhang

引用次数: 0

Preparing highly entangled states of nanodiamond rotation and NV center spin 制备纳米金刚石旋转和 NV 中心自旋的高度纠缠态

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-02-01 DOI: 10.1088/1674-1056/ad117a

Wen-Liang Li, Duan-Lu Zhou

引用次数: 0

Dynamical nonlinear excitations induced by interaction quench in a two-dimensional box-trapped Bose–Einstein condensate 二维箱阱玻色-爱因斯坦凝聚态中由相互作用淬火诱发的动态非线性激变

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-02-01 DOI: 10.1088/1674-1056/ad1179

Zhen-Xia Niu, Chao Gao

{"title":"Dynamical nonlinear excitations induced by interaction quench in a two-dimensional box-trapped Bose–Einstein condensate","authors":"Zhen-Xia Niu, Chao Gao","doi":"10.1088/1674-1056/ad1179","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1179","url":null,"abstract":"Manipulating nonlinear excitations, including solitons and vortices, is an essential topic in quantum many-body physics. A new progress in this direction is a protocol proposed in [<italic toggle=\"yes\">Phys. Rev. Res.</italic>\u0000<bold>2</bold> 043256 (2020)] to produce dark solitons in a one-dimensional atomic Bose–Einstein condensate (BEC) by quenching inter-atomic interaction. Motivated by this work, we generalize the protocol to a two-dimensional BEC and investigate the generic scenario of its post-quench dynamics. For an isotropic disk trap with a hard-wall boundary, we find that successive inward-moving ring dark solitons (RDSs) can be induced from the edge, and the number of RDSs can be controlled by tuning the ratio of the after- and before-quench interaction strength across different critical values. The role of the quench played on the profiles of the density, phase, and sound velocity is also investigated. Due to the snake instability, the RDSs then become vortex–antivortex pairs with peculiar dynamics managed by the initial density and the after-quench interaction. By tuning the geometry of the box traps, demonstrated as polygonal ones, more subtle dynamics of solitons and vortices are enabled. Our proposed protocol and the discovered rich dynamical effects on nonlinear excitations can be realized in near future cold-atom experiments.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"8 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139758643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in Neuromorphic Computing: Expanding Horizons for AI Development through Novel Artificial Neurons and In-Sensor Computing 神经形态计算的进展：通过新型人工神经元和传感器内计算拓展人工智能发展的视野

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c58

Yubo Yang, Jizhe Zhao, Yinjie Liu, Xiayang Hua, Tianrui Wang, Ji-yuan Zheng, Z. Hao, B. Xiong, Changzheng Sun, Yanjun Han, Jian Wang, Hongtao Li, Lai Wang, Yi Luo

{"title":"Advances in Neuromorphic Computing: Expanding Horizons for AI Development through Novel Artificial Neurons and In-Sensor Computing","authors":"Yubo Yang, Jizhe Zhao, Yinjie Liu, Xiayang Hua, Tianrui Wang, Ji-yuan Zheng, Z. Hao, B. Xiong, Changzheng Sun, Yanjun Han, Jian Wang, Hongtao Li, Lai Wang, Yi Luo","doi":"10.1088/1674-1056/ad1c58","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1c58","url":null,"abstract":"\u0000 AI development has brought great success to upgrading the information age. At the same time, the large-scale Artificial Neural Network for building AI systems is thirsty for computing power, which is barely satisfied by the conventional computing hardware. In the post-Moore era, the increase in computing power brought about by the size reduction of CMOS in very large-scale integrated circuits (VLSIC) is challenging to meet the growing demand for AI computing power. To address the issue, technical approaches like neuromorphic computing attract great attention because of their feature of breaking Von-Neumann architecture, and dealing with AI algorithms much more parallelly and energy efficiently. Inspired by the human neural network architecture, neuromorphic computing hardware is brought to life based on novel artificial neurons constructed by new materials or devices. Although it is relatively difficult to deploy a training process in the neuromorphic architecture like spiking neural network (SNN), the development in this field has incubated promising technologies like in-sensor computing, which brings new opportunities for multidisciplinary research, including the field of optoelectronic materials and devices, artificial neural networks, and microelectronics integration technology. The vision chips based on the architectures could reduce unnecessary data transfer and realize fast and energy-efficient visual cognitive processing. This paper reviews firstly the architectures and algorithms of SNN, and artificial neuron devices supporting neuromorphic computing, then the recent progress of in-sensor computing vision chips, which all will promote the development of AI.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"10 20","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139443617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Self-Embedding Holographic Watermarking Image Encryption Protection Scheme 新颖的自嵌入式全息水印图像加密保护方案

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c5b

Linian Wang, Nanrun Zhou, Bo Sun, Yinghong Cao, Jun Mou

引用次数: 0

Engineering the spectra of photon triplets generated from micro/nanofiber 对微型/纳米纤维产生的光子三重子的光谱进行工程设计

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c5d

Chuan Qu, Dongqin Guo, Xiaoxiao Li, Zhenqi Liu, Yi Zhao, Shenghai Zhang, Zhengtong Wei

{"title":"Engineering the spectra of photon triplets generated from micro/nanofiber","authors":"Chuan Qu, Dongqin Guo, Xiaoxiao Li, Zhenqi Liu, Yi Zhao, Shenghai Zhang, Zhengtong Wei","doi":"10.1088/1674-1056/ad1c5d","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1c5d","url":null,"abstract":"\u0000 Quantum light sources are the core resources for photonics-based quantum information processing. We investigate the spectral engineering of photon triplets generated by third-order spontaneous parametric down-conversion in micro/nanofiber. The phase mismatching at one-third pump frequency gives rise to non-degenerate photon triplets, the joint spectral intensity of which has an elliptical locus with a fixed eccentricity of $frac{sqrt{6}}{3}$. Therefore, we propose a frequency-division scheme to separate non-degenerate photon triplets into three channels with high heralding efficiency for the first time. Choosing an appropriate pump wavelength can compensate for the fabrication errors of micro/nanofiber and also generate narrowband, non-degenerate photon triplet sources with high signal-to-noise ratio. Furthermore, the long-period micro/nanofiber grating introduces a new controllable degree of freedom to tailor phase matching, resulting from the periodic oscillation of dispersion. In this scheme, the wavelength of photon triplets can be flexibly tuned using quasi-phase matching. We study the generation of photon triplets from this novel perspective of spectrum engineering, and we believe that this work will accelerate the practical implementation of photon triplets in quantum information processing.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"57 19","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139441950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A global model of intensity autocorrelation to determine laser pulse duration 确定激光脉冲持续时间的强度自相关全局模型

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c57

Yufei Peng, Liqiang Liu, Lihong Hong, Zhiyuan Li

{"title":"A global model of intensity autocorrelation to determine laser pulse duration","authors":"Yufei Peng, Liqiang Liu, Lihong Hong, Zhiyuan Li","doi":"10.1088/1674-1056/ad1c57","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1c57","url":null,"abstract":"\u0000 We present a new global model of collinear autocorrelation based on second harmonic generation nonlinearity. The model is rigorously derived from the nonlinear coupled wave equation specific to the autocorrelation measurement configuration, without requiring a specific form of the incident pulse function. A rigorous solution of the nonlinear coupled wave equation is obtained in the time domain and expressed in a general analytical form. The global model fully accounts for the nonlinear interaction and propagation effects within nonlinear crystals, which are not captured by the classical local model. To assess the performance of the global model compared to the classic local model, we investigate the autocorrelation signals obtained from both models for different incident pulse waveforms and different full-width half-maximums (FWHM). When the incident pulse waveform is Lorentzian with a FWHM of 200fs, the global model predicts an autocorrelation signal FWHM of 399.9fs, while the classic local model predicts a FWHM of 331.4fs. The difference between the two models is 68.6fs, corresponding to an error of 17.2%. Similarly, for a sech-type incident pulse with a FWHM of 200fs, the global model predicts an autocorrelation signal FWHM of 343.9fs, while the local model predicts a FWHM of 308.8fs. The difference between the two models is 35.1fs, with an error of 10.2%. We further examine the behavior of the models for Lorentzian pulses with FWHMs of 100fs, 200fs, and 500fs. The differences between the global and local models are 17.1fs, 68.6fs, and 86.0fs, respectively, with errors approximately around 17%. These comparative analyses clearly demonstrate the superior accuracy of the global model in intensity autocorrelation modeling.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"45 44","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139442292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-step quantum dialogue 一步式量子对话

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c5c

Peng-Hui Zhu, W. Zhong, Ming‐Ming Du, Xi-Yun Li, Lan Zhou, Yu‐Bo Sheng

引用次数: 0

Superconductivity in kagome metal ThRu3Si2 神户金属 ThRu3Si2 的超导性

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-09 DOI: 10.1088/1674-1056/ad1c5e

Yi Liu, Jing Li, Wu-Zhang Yang, Jia-Yi Lu, Bo-Ya Cao, Hua-Xun Li, Wan-li Chai, Si-Qi Wu, Bai-Zhuo Li, Yun-Lei Sun, W. Jiao, Wang Cao, Xiao-Feng Xu, Ren Zhi, G. Cao

引用次数: 0