Chinese Physics B最新文献_第6页

Wigner function of optical cumulant operator and its dissipation in thermo-entangled state representation 光积算子的维格纳函数及其在热纠缠态表示中的耗散

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-05-01 DOI: 10.1088/1674-1056/ad2f20

Ke Zhang, Lan-Lan Li, Hong-Yi Fan

引用次数: 0

Extending microwave-frequency electric-field detection through single transmission peak method 通过单传输峰值法扩展微波频率电场探测范围

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-05-01 DOI: 10.1088/1674-1056/ad2a6f

Qing Liu, Jin-Zhan Chen, He Wang, Jie Zhang, Wei-Min Ruan, Guo-Zhu Wu, Shun-Yuan Zheng, Jing-Ting Luo, Zhen-Fei Song

{"title":"Extending microwave-frequency electric-field detection through single transmission peak method","authors":"Qing Liu, Jin-Zhan Chen, He Wang, Jie Zhang, Wei-Min Ruan, Guo-Zhu Wu, Shun-Yuan Zheng, Jing-Ting Luo, Zhen-Fei Song","doi":"10.1088/1674-1056/ad2a6f","DOIUrl":"https://doi.org/10.1088/1674-1056/ad2a6f","url":null,"abstract":"The strength of microwave (MW) electric field can be observed with high precision by using the standard electromagnetically induced transparency and Aulter–Towns (EIT-AT) technique, when its frequency is resonant or nearly-resonant with the Rydberg transition frequency. As the detuning of MW field increases, one of the transmission peaks (single peak) is easier to measure due to its increased amplitude. It can be found that the central symmetry point of the two transmission peaks <italic toggle=\"yes\">f</italic>\u00001/2 is only related to the detuning of MW field <italic toggle=\"yes\">Δ</italic>\u0000MW and central symmetry point <italic toggle=\"yes\">f</italic>\u00000 of resonant MW field, satisfying the relation <italic toggle=\"yes\">f</italic>\u00001/2 = <italic toggle=\"yes\">Δ</italic>\u0000MW/2 + <italic toggle=\"yes\">f</italic>\u00000. Thus, we demonstrate a single transmission peak method that the MW E-field can be determined by interval between the position of single peak and <italic toggle=\"yes\">f</italic>\u00001/2. We use this method to measure continuous frequencies in a band from −200 MHz to 200 MHz of the MW field. The experimental results and theoretical analysis are presented to describe the effectiveness of this method. For 50 MHz < <italic toggle=\"yes\">Δ</italic>\u0000MW < 200 MHz, this method solves the problem that the AT splitting cannot be measured by using the standard EIT-AT techniques or multiple atomic-level Rydberg atom schemes.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"44 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189719","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

Manipulating the electron dynamics in the non-sequential double ionization process of Ar atoms by an orthogonal two-color laser field 用正交双色激光场操纵氩原子非连续双电离过程中的电子动力学

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-05-01 DOI: 10.1088/1674-1056/ad2606

Pengzhao Wang, Lijie Qian, Zhenrong Sun, Yan Yang

{"title":"Manipulating the electron dynamics in the non-sequential double ionization process of Ar atoms by an orthogonal two-color laser field","authors":"Pengzhao Wang, Lijie Qian, Zhenrong Sun, Yan Yang","doi":"10.1088/1674-1056/ad2606","DOIUrl":"https://doi.org/10.1088/1674-1056/ad2606","url":null,"abstract":"Electron dynamics during non-sequential double ionization (NSDI) is one of the most attractive areas of research in the field of laser–atom or laser–molecule interaction. Based on the classic two-dimensional model, we study the process of NSDI of argon atoms driven by a few-cycle orthogonal two-color laser field composed of 800 nm and 400 nm laser pulses. By changing the relative phase of the two laser pulses, a localized enhancement of NSDI yield is observed at 0.5<italic toggle=\"yes\">π</italic> and 1.5<italic toggle=\"yes\">π</italic>, which could be attributed to a rapid and substantial increase in the number of electrons returning to the parent ion within extremely short time intervals at these specific phases. Through the analysis of the electron–electron momentum correlations within different time windows of NSDI events and the angular distributions of emitted electrons in different channels, we observe a more pronounced electron–electron correlation phenomenon in the recollision-induced ionization (RII) channel. This is attributed to the shorter delay time in the RII channel.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"19 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189721","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

Manipulation of internal blockage in triangular triple quantum dot 操纵三角形三量子点的内部阻塞

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-30 DOI: 10.1088/1674-1056/ad2d54

Yue Qi, 月齐, Jian-Hua Wei and 建华魏

引用次数: 0

Chimera states of phase oscillator populations with nonlocal higher-order couplings 具有非局部高阶耦合的相位振荡器群体的嵌合态

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad1481

Yonggang Wu, Huajian Yu, Zhigang Zheng, Can Xu

引用次数: 0

Phase-field simulations of the effect of temperature and interface for zirconium δ-hydrides 温度和界面对锆δ-酸酐影响的相场模拟

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad1f4d

Zi-Hang Chen, Jie Sheng, Yu Liu, Xiao-Ming Shi, Houbing Huang, Ke Xu, Yue-Chao Wang, Shuai Wu, Bo Sun, Hai-Feng Liu, Hai-Feng Song

{"title":"Phase-field simulations of the effect of temperature and interface for zirconium δ-hydrides","authors":"Zi-Hang Chen, Jie Sheng, Yu Liu, Xiao-Ming Shi, Houbing Huang, Ke Xu, Yue-Chao Wang, Shuai Wu, Bo Sun, Hai-Feng Liu, Hai-Feng Song","doi":"10.1088/1674-1056/ad1f4d","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1f4d","url":null,"abstract":"Hydride precipitation in zirconium cladding materials can damage their integrity and durability. Service temperature and material defects have a significant effect on the dynamic growth of hydrides. In this study, we have developed a phase-field model based on the assumption of elastic behaviour within a specific temperature range (613 K–653 K). This model allows us to study the influence of temperature and interfacial effects on the morphology, stress, and average growth rate of zirconium hydride. The results suggest that changes in temperature and interfacial energy influence the length-to-thickness ratio and average growth rate of the hydride morphology. The ultimate determinant of hydride orientation is the loss of interfacial coherency, primarily induced by interfacial dislocation defects and quantifiable by the mismatch degree <italic toggle=\"yes\">q</italic>. An escalation in interfacial coherency loss leads to a transition of hydride growth from horizontal to vertical, accompanied by the onset of redirection behaviour. Interestingly, redirection occurs at a critical mismatch level, denoted as <italic toggle=\"yes\">q</italic>\u0000c, and remains unaffected by variations in temperature and interfacial energy. However, this redirection leads to an increase in the maximum stress, which may influence the direction of hydride crack propagation. This research highlights the importance of interfacial coherency and provides valuable insights into the morphology and growth kinetics of hydrides in zirconium alloys.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"39 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140608874","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

Transport properties of Hall-type quantum states in disordered bismuthene 无序双钌中霍尔型量子态的输运特性

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad2605

Jiaojiao Zhou, Jiangying Yu, Shuguang Cheng, Hua Jiang

{"title":"Transport properties of Hall-type quantum states in disordered bismuthene","authors":"Jiaojiao Zhou, Jiangying Yu, Shuguang Cheng, Hua Jiang","doi":"10.1088/1674-1056/ad2605","DOIUrl":"https://doi.org/10.1088/1674-1056/ad2605","url":null,"abstract":"Bismuthene, an inherently hexagonal structure characterized by a huge bulk gap, offers a versatile platform for investigating the electronic transport of various topological quantum states. Using nonequilibrium Green’s function method and Landauer–Büttiker formula, we thoroughly investigate the transport properties of various Hall-type quantum states, including quantum spin Hall (QSH) edge states, quantum valley Hall kink (QVHK) states, and quantum spin–valley Hall kink (QSVHK) states, in the presence of various disorders. Based on the exotic transport features, a spin–valley filter, capable of generating a highly spin- and valley-polarized current, is proposed. The valley index and the spin index of the filtered QSVHK state are determined by the staggered potential and the intrinsic spin–orbit coupling, respectively. The efficiency of the spin–valley filter is supported by the spacial current distribution, the valley-resolved conductance, and the spin-resolved conductance. Compared with a sandwich structure for QSVHK, our proposed spin–valley filter can work with a much smaller size and is more accessible in the experiment.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"25 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140614143","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

Elliptically polarized high-order harmonic generation of Ar atom in an intense laser field 强激光场中氩原子的椭圆偏振高阶谐波生成

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad2604

Jie Hu, Yi-Chen Wang, Qiu-Shuang Jing, Wei Jiang, Ge-Wen Wang, Yi-Wen Zhao, Bo Xiao, Hong-Jing Liang, Ri Ma

引用次数: 0

Emergent topological ordered phase for the Ising-XY model revealed by cluster-updating Monte Carlo method 蒙特卡洛聚类更新法揭示 Ising-XY 模型的新兴拓扑有序相

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad1d4d

Heyang Ma, Wanzhou Zhang, Yanting Tian, Chengxiang Ding, Youjin Deng

{"title":"Emergent topological ordered phase for the Ising-XY model revealed by cluster-updating Monte Carlo method","authors":"Heyang Ma, Wanzhou Zhang, Yanting Tian, Chengxiang Ding, Youjin Deng","doi":"10.1088/1674-1056/ad1d4d","DOIUrl":"https://doi.org/10.1088/1674-1056/ad1d4d","url":null,"abstract":"The two-component cold atom systems with anisotropic hopping amplitudes can be phenomenologically described by a two-dimensional Ising-<italic toggle=\"yes\">XY</italic> coupled model with spatial anisotropy. At low temperatures, theoretical predictions [<italic toggle=\"yes\">Phys. Rev. A</italic>\u0000<bold>72</bold> 053604 (2005)] and [arXiv: 0706.1609] indicate the existence of a topological ordered phase characterized by Ising and <italic toggle=\"yes\">XY</italic> disorder but with 2<italic toggle=\"yes\">XY</italic> ordering. However, due to ergodic difficulties faced by Monte Carlo methods at low temperatures, this topological phase has not been numerically explored. We propose a linear cluster updating Monte Carlo method, which flips spins without rejection in the anisotropy limit but does not change the energy. Using this scheme and conventional Monte Carlo methods, we succeed in revealing the nature of topological phases with half-vortices and domain walls. In the constructed global phase diagram, Ising and <italic toggle=\"yes\">XY</italic>-type transitions are very close to each other and differ significantly from the schematic phase diagram reported earlier. We also propose and explore a wide range of quantities, including magnetism, superfluidity, specific heat, susceptibility, and even percolation susceptibility, and obtain consistent and reliable results. Furthermore, we observed first-order transitions characterized by common intersection points in magnetizations for different system sizes, as opposed to the conventional phase transition where Binder cumulants of various sizes share common intersections. The critical exponents of different types of phase transitions are reasonably fitted. The results are useful to help cold atom experiments explore the half-vortex topological phase.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"53 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140608965","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

Symmetry transformation of nonlinear optical current of tilted Weyl nodes and application to ferromagnetic MnBi2Te4 倾斜 Weyl 节点非线性光学电流的对称变换及其在铁磁 MnBi2Te4 中的应用

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-04-01 DOI: 10.1088/1674-1056/ad2bfb

Zhuo-Cheng Lu, Ji Feng

引用次数: 0