Chinese Physics B最新文献_第7页

Triple points and phase transitions of D-dimensional dyonic AdS black holes with quasitopological electromagnetism in Einstein–Gauss–Bonnet gravity 爱因斯坦-高斯-波奈引力中具有准拓扑电磁学的 D 维染色 AdS 黑洞的三重点和相变

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-05-31 DOI: 10.1088/1674-1056/ad3342

Ping-Hui Mou, 平辉牟, Qing-Quan Jiang, 青权蒋, Ke-Jian He, 柯腱何, Guo-Ping Li and 国平李

{"title":"Triple points and phase transitions of D-dimensional dyonic AdS black holes with quasitopological electromagnetism in Einstein–Gauss–Bonnet gravity","authors":"Ping-Hui Mou, 平辉牟, Qing-Quan Jiang, 青权蒋, Ke-Jian He, 柯腱何, Guo-Ping Li and 国平李","doi":"10.1088/1674-1056/ad3342","DOIUrl":"https://doi.org/10.1088/1674-1056/ad3342","url":null,"abstract":"By considering the negative cosmological constant Λ as a thermodynamic pressure, we study the thermodynamics and phase transitions of the D-dimensional dyonic AdS black holes (BHs) with quasitopological electromagnetism in Einstein–Gauss–Bonnet (EGB) gravity. The results indicate that the small/large BH phase transition that is similar to the van der Waals (vdW) liquid/gas phase transition always exists for any spacetime dimensions. Interestingly, we then find that this BH system exhibits a more complex phase structure in 6-dimensional case that is missed in other dimensions. Specifically, it shows for D = 6 that we observed the small/intermediate/large BH phase transitions in a specific parameter region with the triple point naturally appeared. Moreover, when the magnetic charge turned off, we still observed the small/intermediate/large BH phase transitions and triple point only in 6-dimensional spacetime, which is consistent with the previous results. However, for the dyonic AdS BHs with quasitopological electromagnetism in Einstein–Born–Infeld (EBI) gravity, the novel phase structure composed of two separate coexistence curves observed by Li et al. [Phys. Rev. D105 104048 (2022)] disappeared in EGB gravity. This implies that this novel phase structure is closely related to gravity theories, and seems to have nothing to do with the effect of quasitopological electromagnetism. In addition, it is also true that the critical exponents calculated near the critical points possess identical values as mean field theory. Finally, we conclude that these findings shall provide some deep insights into the intriguing thermodynamic properties of the dyonic AdS BHs with quasitopological electromagnetism in EGB gravity.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"37 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510315","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

Intrinsic polarization conversion and avoided-mode crossing in X-cut lithium niobate microrings X 切面铌酸锂微镜中的本征偏振转换和避免的模式交叉

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/ad47b2

Zelin Tan, Jianfa Zhang, Zhihong Zhu, Wei Chen, Zhengzheng Shao, Ken Liu, Shiqiao Qin

{"title":"Intrinsic polarization conversion and avoided-mode crossing in X-cut lithium niobate microrings","authors":"Zelin Tan, Jianfa Zhang, Zhihong Zhu, Wei Chen, Zhengzheng Shao, Ken Liu, Shiqiao Qin","doi":"10.1088/1674-1056/ad47b2","DOIUrl":"https://doi.org/10.1088/1674-1056/ad47b2","url":null,"abstract":"Compared with well-developed free space polarization converters, polarization conversion between TE and TM modes in the waveguide is generally considered to be caused by shape birefringence, like curvature, morphology of waveguide cross section and scattering. Here, we study the polarization conversion mechanism in 1-THz-FSR X-cut lithium niobate microrings with multiple-resonance condition, that is the conversion can be implemented by birefringence of waveguides, which will also introduce an avoided-mode crossing. In the experiment, we find that this mode crossing results in severe suppression of one sideband in local nondegenerate four-wave mixing and disrupts the cascaded four-wave mixing on this side. Simultaneously, we propose one two-dimensional method to simulate the eigenmodes (TE and TM) in X-cut microrings, and the mode crossing point. This work will provide one approach to the design of polarization converters and simulation for monolithic photonics integrated circuits, and may be helpful to the studies of missed temporal dissipative soliton formation in X-cut lithium niobate rings.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"68 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189745","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

Factors resisting protein adsorption on hydrophilic/hydrophobic self-assembled monolayers terminated with hydrophilic hydroxyl groups 亲水/疏水自组装单层上吸附亲水羟基的阻力因素

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/ad39ca

Dangxin Mao, Yuan-Yan Wu, Yusong Tu

{"title":"Factors resisting protein adsorption on hydrophilic/hydrophobic self-assembled monolayers terminated with hydrophilic hydroxyl groups","authors":"Dangxin Mao, Yuan-Yan Wu, Yusong Tu","doi":"10.1088/1674-1056/ad39ca","DOIUrl":"https://doi.org/10.1088/1674-1056/ad39ca","url":null,"abstract":"The hydroxyl-terminated self-assembled monolayer (OH-SAM), as a surface resistant to protein adsorption, exhibits substantial potential in applications such as ship navigation and medical implants, and the appropriate strategies for designing anti-fouling surfaces are crucial. Here, we employ molecular dynamics simulations and alchemical free energy calculations to systematically analyze the factors influencing resistance to protein adsorption on the SAMs terminated with single or double OH groups at three packing densities (<italic toggle=\"yes\">Σ</italic> = 2.0 nm−2, 4.5 nm−2, and 6.5 nm−2), respectively. For the first time, we observed that the compactness and order of interfacial water enhance its physical barrier effect, subsequently enhancing the resistance of SAM to protein adsorption. Notably, the spatial hindrance effect of SAM leads to the embedding of protein into SAM, resulting in a lack of resistance of SAM towards protein. Furthermore, the number of hydroxyl groups per unit area of double OH-terminated SAM at <italic toggle=\"yes\">Σ</italic> = 6.5 nm−2 is approximately 2 to 3 times that of single OH-terminated SAM at <italic toggle=\"yes\">Σ</italic> = 6.5 nm−2 and 4.5 nm−2, consequently yielding a weaker resistance of double OH-terminated SAM towards protein. Meanwhile, due to the structure of SAM itself, i.e., the formation of a nearly perfect ice-like hydrogen bond structure, the SAM exhibits the weakest resistance towards protein. This study will complement and improve the mechanism of OH-SAM resistance to protein adsorption, especially the traditional barrier effect of interfacial water.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"86 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189759","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

Interplay between topology and localization on superconducting circuits 超导电路拓扑与定位之间的相互作用

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/ad342c

Xin Guan, Bingyan Huo, Gang Chen

{"title":"Interplay between topology and localization on superconducting circuits","authors":"Xin Guan, Bingyan Huo, Gang Chen","doi":"10.1088/1674-1056/ad342c","DOIUrl":"https://doi.org/10.1088/1674-1056/ad342c","url":null,"abstract":"Topological insulators occupy a prominent position in the realm of condensed matter physics. Nevertheless, the presence of strong disorder has the potential to disrupt the integrity of topological states, leading to the localization of all states. This study delves into the intricate interplay between topology and localization within the one-dimensional Su–Schrieffer–Heeger (SSH) model, which incorporates controllable off-diagonal quasi-periodic modulations on superconducting circuits. Through the application of external alternating current (ac) magnetic fluxes, each transmon undergoes controlled driving, enabling independent tuning of all coupling strengths. Within a framework of this model, we construct comprehensive phase diagrams delineating regions characterized by extended topologically nontrivial states, critical localization, and co-existing topological and critical localization phases. The paper also addresses the dynamics of qubit excitations, elucidating distinct quantum state transfers resulting from the intricate interplay between topology and localization. Additionally, we propose a method for detecting diverse quantum phases utilizing existing experimental setups.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141530164","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

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