Chinese Physics B最新文献_第9页

Anomalous Valley Hall Effect in Two-dimensional Valleytronic Materials 二维谷电子材料中的反常谷霍尔效应

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/ad1c59

Hongxin Chen, Xiaobo Yuan, Junfeng Ren

引用次数: 0

Erratum to “Atomic-scale electromagnetic theory bridging optics in microscopic world and macroscopic world” 为 "连接微观世界和宏观世界光学的原子尺度电磁理论 "所作的勘误

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-02 DOI: 10.1088/1674-1056/ad19d8

Zhi-Yuan Li, Jianfeng Chen

引用次数: 0

Biodegradable and flexible ι-carrageenan based RRAM with ultralow power consumption 基于ι-卡拉胶的可生物降解柔性超低功耗 RRAM

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-02 DOI: 10.1088/1674-1056/ad19d4

Jing-Yao Bian, Ye Tao, Zhong-Qiang Wang, Xiao-Ning Zhao, Ya Lin, Hai-Yang Xu, and Yi-Chun Liu

{"title":"Biodegradable and flexible ι-carrageenan based RRAM with ultralow power consumption","authors":"Jing-Yao Bian, Ye Tao, Zhong-Qiang Wang, Xiao-Ning Zhao, Ya Lin, Hai-Yang Xu, and Yi-Chun Liu","doi":"10.1088/1674-1056/ad19d4","DOIUrl":"https://doi.org/10.1088/1674-1056/ad19d4","url":null,"abstract":"\u0000 Transient memories, which can physically disappear without leaving traceable remains over a period of normal operation, are attracting increasing attention for potential applications in the fields of data security and green electronics. Resistive random access memory (RRAM) is a promising candidate for next-generation memory. In this context, biocompatible ι-carrageenan (ι-car), extracted from natural seaweed, is introduced for the fabrication of RRAM devices (Ag/ι-car/Pt). Taking advantage of the complexation processes between the functional groups (C-O-C, C-O-H, et al.) and Ag metal ions, a lower migration barrier of Ag ions and a high-speed switching (22.2 ns for SET operation/26 ns for RESET operation) were achieved, resulting in an ultralow power consumption of 56 fJ. And the prepared Ag/ι-car/Pt RRAM devices also revealed the capacities of multilevel storage and flexible. In addition, thanks to the hydrophilic groups of ι-car molecule, the RRAM devices can be rapidly dissolved in deionized (DI) water within 13 minutes, showing excellent transient characteristic. This work demonstrates that ι-car based RRAM devices have great potential for applications in secure storage applications, flexible electronics and transient electronics.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"15 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139452783","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

Effects of carrier density and interactions on pairing symmetry in a t2g model 载流子密度和相互作用对 t2g 模型配对对称性的影响

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-01 DOI: 10.1088/1674-1056/ad1094

Yun-Xiao Li, Wen-Han Xi, Zhao-Yang Dong, Zi-Jian Yao, Shun-Li Yu, Jian-Xin Li

{"title":"Effects of carrier density and interactions on pairing symmetry in a t2g model","authors":"Yun-Xiao Li, Wen-Han Xi, Zhao-Yang Dong, Zi-Jian Yao, Shun-Li Yu, Jian-Xin Li","doi":"10.1088/1674-1056/ad1094","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1094","url":null,"abstract":"By utilizing the fluctuation exchange approximation method, we perform a study on the superconducting pairing symmetry in a t2g three-orbital model on the square lattice. Although the tight-binding parameters of the model are based on Sr2RuO4, we have systematically studied the evolution of superconducting pairing symmetry with the carrier density and interactions, making our findings relevant to a broader range of material systems. Under a moderate Hund’s coupling, we find that spin fluctuations dominate the superconducting pairing, leading to a prevalent spin-singlet pairing with a d\u0000<italic toggle=\"yes\">x</italic>\u00002–<italic toggle=\"yes\">y</italic>\u00002\u0000-wave symmetry for the carrier density within the range of <italic toggle=\"yes\">n</italic> = 1.5–4 per site. By reducing the Hund’s coupling, the charge fluctuations are enhanced and play a crucial role in determining the pairing symmetry, leading to a transition of the pairing symmetry from the spin-singlet d\u0000<italic toggle=\"yes\">x</italic>\u00002–<italic toggle=\"yes\">y</italic>\u00002\u0000-wave to the spin-triplet p-wave. Furthermore, we find that the superconducting pairings are orbital dependent. As the carrier density changes from <italic toggle=\"yes\">n</italic> = 4 to <italic toggle=\"yes\">n</italic> = 1.5, the active orbitals for superconducting pairing shift from the quasi-two-dimensional orbital d\u0000<italic toggle=\"yes\">xy</italic>\u0000 to the quasi-one-dimensional orbitals d\u0000<italic toggle=\"yes\">xz</italic>\u0000 and d\u0000<italic toggle=\"yes\">yz</italic>\u0000.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"31 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139092085","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

Effective transmittance of Fabry–Perot cavity under non-parallel beam incidence 法布里-珀罗腔在非平行光束入射下的有效透射率

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-01-01 DOI: 10.1088/1674-1056/ad0ec3

Yin-Sheng Lv, Pin-Hua Xie, Jin Xu, You-Tao Li, Hua-Rong Zhang

{"title":"Effective transmittance of Fabry–Perot cavity under non-parallel beam incidence","authors":"Yin-Sheng Lv, Pin-Hua Xie, Jin Xu, You-Tao Li, Hua-Rong Zhang","doi":"10.1088/1674-1056/ad0ec3","DOIUrl":"https://doi.org/10.1088/1674-1056/ad0ec3","url":null,"abstract":"The Fabry–Pérot (FP) resonant cavity is widely used in laser and spectroscopic measurements due to its unique interference transfer function (ITF). In the ideal case of parallel incident light, the ITF of the FP resonant cavity can be expressed by the Airy function. However, in reality, it is difficult to achieve perfect parallelism with collimated beams. In this article, a theoretical model is established for non-parallel light incidence, which assumes that the non-parallel incident light is a cone-shaped beam, and the cone angle is used to quantify the non-parallelism of the beam. The transmittance function of the FP resonant cavity under non-parallel light incidence is derived. The accuracy of the model is experimentally verified. Based on this model, the effects of divergence angle, tilt angle and FP cavity parameters (reflectivity, cavity length) on the ITF are studied. The reasons for the decrease in peak value, broadening and asymmetry of the interference peak under non-parallel light incidence are explained. It is suggested that a fine balance between the interference peak and the collimation effect of the incident light should be considered in the design and application of FP resonant cavities, especially for tilted applications such as angle-scanned spectroscopy. The research results of this article have certain significance for the design and application of FP resonant cavities.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"27 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139092142","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

Versatile and controlled quantum teleportation network 多功能可控量子传送网络

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2023-12-29 DOI: 10.1088/1674-1056/ad1981

Yao-Yao Zhou, Peng-Xian Mei, Yan-Hong Liu, Liang Wu, Yan-Xiang Li, Zhi-Hui Yan, Xiao-Jun Jia

引用次数: 0

An Yb optical clock with a lattice power enhancement cavity 带有晶格功率增强腔的掺镱光学时钟

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2023-12-29 DOI: 10.1088/1674-1056/ad1986

Chunyun Wang, Yuan Yao, Haosen Shi, Hongfu Yu, Longsheng Ma, Yanyi Jiang

引用次数: 0

Ultrafast magneto-optical dynamics in Nickel (111) single crystal studied by the integration of ultrafast reflectivity and polarimetry probes 通过整合超快反射率和偏振探针研究镍 (111) 单晶中的超快磁光动力学

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2023-12-29 DOI: 10.1088/1674-1056/ad1983

Hao Kuang, Junxiao Yu, Jie Chen, H. E. Elsayed-Ali, Runze Li, Peter M. Rentzepis

引用次数: 0

Analysis of Learnability of a Novel Hybrid Quantum-Classical Convolutional Neural Network in Image Classification 新型混合量子-经典卷积神经网络在图像分类中的可学习性分析

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2023-12-28 DOI: 10.1088/1674-1056/ad1926

Tao Cheng, Run-Sheng Zhao, Shuang Wang, Rui Wang, Hong-Yang Ma

{"title":"Analysis of Learnability of a Novel Hybrid Quantum-Classical Convolutional Neural Network in Image Classification","authors":"Tao Cheng, Run-Sheng Zhao, Shuang Wang, Rui Wang, Hong-Yang Ma","doi":"10.1088/1674-1056/ad1926","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1926","url":null,"abstract":"We design a new hybrid quantum-classical convolutional neural network (HQCCNN) model based on parameter quantum circuits. In this model, we use parameterized quantum circuits (PQC) to redesign the convolutional layer in classical convolutional neural networks (CNN), forming a new quantum convolutional layer to achieve unitary transformation of quantum states, enabling the model to more accurately extract hidden information from images. At the same time, we combine the classical fully connected layer with PQC to form a new hybrid quantum-classical fully connected layer to further improve the accuracy of classification. Finally, we used the MNIST dataset to test the potential of HQCCNN. The results indicate that HQCCNN has good performance in solving classification problems. In binary classification tasks, the classification accuracy of numbers 5 and 7 is as high as 99.71%. And in multivariate classification, the accuracy rate also reached 98.51%. Finally, we compare the performance of HQCCNN with other models and find that HQCCNN has better classification performance and convergence speed.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"5 14","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139148739","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

Ascertaining the influences of auxiliary qubits on the Einstein-Podolsky-Rosen steering and its directions 确定辅助量子比特对爱因斯坦-波多尔斯基-罗森转向及其方向的影响

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2023-12-28 DOI: 10.1088/1674-1056/ad1927

Ling-ling Xing, Huan Yang, Gang Zhang, Min Kong

{"title":"Ascertaining the influences of auxiliary qubits on the Einstein-Podolsky-Rosen steering and its directions","authors":"Ling-ling Xing, Huan Yang, Gang Zhang, Min Kong","doi":"10.1088/1674-1056/ad1927","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1927","url":null,"abstract":"Einstein-Podolsky-Rosen (EPR) steering is one of nontrivial quantum nonlocalities and characteristics in the non-classical world. The directivity (or asymmetry) is a fascinating trait of the EPR steering, and it is different from other quantum nonlocalities. Here, considering the strategy in which two atoms compose a two-qubit X state, and the two atoms are owned by Alice and Bob, respectively. The atom of Alice suffers from a reservoir, and the atom of Bob couples with a bit flip channel. The influences of auxiliary qubits on the EPR steering and its directions are revealed by means of entropy uncertainty relation. The results indicate that the EPR steering declines with growing time t when adding less auxiliary qubits. The EPR steering behaves as damped oscillation when introducing more auxiliary qubits in the strong coupling regime. In the weak coupling regime, the EPR steering monotonously decreases as t increases when coupling auxiliary qubits. The increases of auxiliary qubits are responsible for the fact that the steerability from Alice to Bob (or from Bob to Alice) can be more effectively revealed. Notably, the introductions of more auxiliary qubits can change the situation that the steerability from Alice to Bob is certain into the situation that the steerability from Bob to Alice is certain.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"59 14","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139150746","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