Physics Letters A最新文献_第10页

Multifocal rigid gas permeable contact lenses with multi-tangential positioning and corrected spherical aberration for myopia control 用于控制近视的多角度定位和球面像差校正多焦点硬性透气隐形眼镜

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-05 DOI: 10.1016/j.physleta.2024.129947

Zhengwang Li, Ruijin Hong, Dawei Zhang

引用次数: 0

Evolution of cooperation under pure institutional reward and punishment in collective-risk social dilemma games 集体风险社会两难博弈中纯制度奖惩下的合作演化

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-03 DOI: 10.1016/j.physleta.2024.129951

Runyu Yan , Mingquan Xu , Linjie Liu, Shijia Hua

{"title":"Evolution of cooperation under pure institutional reward and punishment in collective-risk social dilemma games","authors":"Runyu Yan , Mingquan Xu , Linjie Liu, Shijia Hua","doi":"10.1016/j.physleta.2024.129951","DOIUrl":"10.1016/j.physleta.2024.129951","url":null,"abstract":"<div><div>Avoiding free-riding in collective actions aimed at achieving collective target is challenging. Research using collective-risk social dilemma games shows that rewards and punishments can mitigate this issue. However, these studies typically assume that the individuals enforcing these incentives also incur the costs of cooperation and implementing the incentives, making the approach costly and inefficient. Here, we introduce pure institutional reward and punishment strategies into collective-risk social dilemma games, where individuals implementing incentives do not bear the costs of cooperation, to investigate their effects on the evolution of cooperation. We find that the introduction of pure reward strategy can promote the stable coexistence of cooperators and free riders within the population. In contrast, the introduction of pure punishment strategies can lead to more diverse dynamics, including monostable, bistable, tristable, and even quadristable outcomes. Our findings highlight the superiority of pure punishment strategies over pure reward strategies in curbing free-rider behavior.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"526 ","pages":"Article 129951"},"PeriodicalIF":2.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Emergence of extreme events from randomly chirped condensate 随机啁啾冷凝物中极端事件的出现

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-03 DOI: 10.1016/j.physleta.2024.129958

Saad Alhadlaq , Sergey A. Ponomarenko

引用次数: 0

Tight conic approximation of testing regions for quantum statistical models and measurements 量子统计模型和测量测试区域的严密圆锥近似

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-03 DOI: 10.1016/j.physleta.2024.129956

Michele Dall'Arno , Francesco Buscemi

{"title":"Tight conic approximation of testing regions for quantum statistical models and measurements","authors":"Michele Dall'Arno , Francesco Buscemi","doi":"10.1016/j.physleta.2024.129956","DOIUrl":"10.1016/j.physleta.2024.129956","url":null,"abstract":"<div><div>Quantum statistical models (i.e., families of normalized density matrices) and quantum measurements (i.e., positive operator-valued measures) can be regarded as linear maps: the former, mapping the space of effects to the space of probability distributions; the latter, mapping the space of states to the space of probability distributions. The images of such linear maps are called the testing regions of the corresponding model or measurement. Testing regions are notoriously impractical to treat analytically in the quantum case. Our first result is to provide an implicit outer approximation of the testing region of any given quantum statistical model or measurement in any finite dimension: namely, a region in probability space that contains the desired image, but is defined implicitly, using a formula that depends only on the given model or measurement. The outer approximation that we construct is <em>minimal</em> among all such outer approximations, and <em>close</em>, in the sense that it becomes the <em>maximal inner</em> approximation up to a constant scaling factor. Finally, we apply our approximation to provide sufficient conditions, that can be tested in a semi-device-independent way, for the ability to transform one quantum statistical model or measurement into another.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"526 ","pages":"Article 129956"},"PeriodicalIF":2.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

New metrics for influential spreaders identification in complex networks based on D-spectra of nodes 基于节点 D 频谱的复杂网络中影响传播者识别新指标

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-03 DOI: 10.1016/j.physleta.2024.129950

Ricky X.F. Chen, Xin-Yu Liu

引用次数: 0

Indicators of quantum phase transitions in the one-dimensional J1-J2 Heisenberg model: Global quantum discord and multipartite nonlocality analysis 一维 J1-J2 海森堡模型中的量子相变指标：全局量子不和谐与多方非时态分析

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-03 DOI: 10.1016/j.physleta.2024.129955

Hongying Liu, Jia Bao, Haoran Yan, Bin Guo

{"title":"Indicators of quantum phase transitions in the one-dimensional J1-J2 Heisenberg model: Global quantum discord and multipartite nonlocality analysis","authors":"Hongying Liu, Jia Bao, Haoran Yan, Bin Guo","doi":"10.1016/j.physleta.2024.129955","DOIUrl":"10.1016/j.physleta.2024.129955","url":null,"abstract":"<div><div>We here investigate the ground state phase transitions of the one-dimensional <span><math><msub><mrow><mi>J</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span>-<span><math><msub><mrow><mi>J</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> Heisenberg model. The phase transition is characterized by analyzing the quantum discord, global quantum discord (GQD), bipartite nonlocality, and multipartite nonlocality of the ground state. Our findings reveal that these correlations serve as effective indicators of the phase transition point at <span><math><msub><mrow><mi>J</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>/</mo><msub><mrow><mi>J</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>=</mo><mn>0.5</mn></math></span>. Specifically, quantum discord and bipartite nonlocality display more pronounced critical behavior in small-sized systems. Conversely, for large-scale systems, GQD and multipartite nonlocality offer a more practical and reliable method for detecting many-body driven phase transitions. Additionally, several linear relationships among these correlations are identified.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"526 ","pages":"Article 129955"},"PeriodicalIF":2.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Robustness of LEO satellite hypernetworks under different network topologies and attack strategies 低地轨道卫星超网络在不同网络拓扑和攻击策略下的鲁棒性

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-02 DOI: 10.1016/j.physleta.2024.129952

Shuaijie Li , Chaojie Zhang , Chengli Zhao , Chengyi Xia

{"title":"Robustness of LEO satellite hypernetworks under different network topologies and attack strategies","authors":"Shuaijie Li , Chaojie Zhang , Chengli Zhao , Chengyi Xia","doi":"10.1016/j.physleta.2024.129952","DOIUrl":"10.1016/j.physleta.2024.129952","url":null,"abstract":"<div><div>The development of low earth orbit (LEO) satellites has become a crucial and essential component with the advancement of digitalization. However, LEO satellites also face various security challenges within their networks, and the failure of certain satellites may trigger cascading failures. To gain a deeper understanding of cascading failure process in LEO satellite networks and enhance its robustness, this letter proposes a novel satellite network model by combining complex network and hypernetwork theories. By altering the network structure and model parameters, the robustness performance of the LEO satellite network under three types of attacks and two different load distribution methods is thoroughly investigated. The results indicate that satellite networks with varying structures are distinct and exhibit different robustness characteristics under specific attack types. Furthermore, the robustness of satellite networks in multiple attack scenarios can be significantly enhanced by implementing improved load allocation strategies. These findings not only provide a theoretical foundation for the design and optimization of satellite networks but also ignite new perspectives and ideas for future research on their robustness.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"526 ","pages":"Article 129952"},"PeriodicalIF":2.3,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigations on the growth, spectral, optical, electrical, thermal and nonlinear optical properties of L-valine itaconic acid single crystal 关于 L-缬氨酸衣康酸单晶的生长、光谱、光学、电学、热学和非线性光学特性的研究

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-02 DOI: 10.1016/j.physleta.2024.129959

P. Shenbagarajan , P. Jayaprakash , S. Krishnan , S. Selvaraj

{"title":"Investigations on the growth, spectral, optical, electrical, thermal and nonlinear optical properties of L-valine itaconic acid single crystal","authors":"P. Shenbagarajan , P. Jayaprakash , S. Krishnan , S. Selvaraj","doi":"10.1016/j.physleta.2024.129959","DOIUrl":"10.1016/j.physleta.2024.129959","url":null,"abstract":"<div><div>A nonlinear optical single crystal of L-Valine Itaconic Acid (LVIA) was grown at room temperature from an aqueous solution by using the slow evaporation method. The grown crystal was undergone X-ray diffraction investigation, which confirm that the crystal belongs to orthorhombic system with the non-centro symmetric P<sub>bca</sub> space group. This single crystal contains several functional groups, according to FTIR spectroscopic analysis there were identified. By analyzing the crystal's UV–visible spectrum, based on its optical transparency this crystal may use for optoelectronic device manufacturing. The emission happens at 553 nm wavelength, according to the photoluminescence spectrum. Thermo gravimetric and differential thermal analytical studies helps us to measure title crystal melting point and thermal stability. At various temperatures, the dielectric property of the crystal was found out. The Kurtz-powder method has been used to study the phenomenon of Second Harmonic Generation (SHG) in the crystal.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"526 ","pages":"Article 129959"},"PeriodicalIF":2.3,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigating device-independent quantum random number generation 研究独立于设备的量子随机数生成

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-02 DOI: 10.1016/j.physleta.2024.129954

Vardaan Mongia , Abhishek Kumar , Shashi Prabhakar , Anindya Banerji , R.P. Singh

引用次数: 0

Cosmological model with linear equation of state parameter in f(R,Lm) gravity 具有 f（R，Lm）引力状态参数线性方程的宇宙学模型

IF 2.3 3区物理与天体物理

Physics Letters A Pub Date : 2024-10-01 DOI: 10.1016/j.physleta.2024.129937

Romanshu Garg , G.P. Singh , Ashwini R Lalke , Saibal Ray

{"title":"Cosmological model with linear equation of state parameter in f(R,Lm) gravity","authors":"Romanshu Garg , G.P. Singh , Ashwini R Lalke , Saibal Ray","doi":"10.1016/j.physleta.2024.129937","DOIUrl":"10.1016/j.physleta.2024.129937","url":null,"abstract":"<div><div>In this paper, we examine the universe's expansion in <span><math><mi>f</mi><mo>(</mo><mi>R</mi><mo>,</mo><msub><mrow><mi>L</mi></mrow><mrow><mi>m</mi></mrow></msub><mo>)</mo></math></span> gravity for a particular form of <span><math><mi>f</mi><mo>(</mo><mi>R</mi><mo>,</mo><msub><mrow><mi>L</mi></mrow><mrow><mi>m</mi></mrow></msub><mo>)</mo><mo>=</mo><mfrac><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></mfrac><mo>+</mo><msubsup><mrow><mi>L</mi></mrow><mrow><mi>m</mi></mrow><mrow><mi>n</mi></mrow></msubsup></math></span>. The field equations for flat FLRW metric with matter Lagrangian <span><math><msub><mrow><mi>L</mi></mrow><mrow><mi>m</mi></mrow></msub><mo>=</mo><mi>ρ</mi></math></span> are derived. Hubble parameter in terms of red-shift(<em>z</em>) are derived using the linear form of Equation of State (EoS) parameter <span><math><mi>ω</mi><mo>=</mo><msub><mrow><mi>w</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>+</mo><msub><mrow><mi>w</mi></mrow><mrow><mn>1</mn></mrow></msub><mi>z</mi></math></span>. By using Bayesian statistical techniques based on <span><math><msup><mrow><mi>χ</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>-minimization technique, we have obtained the best fit values of the model parameters of this model for cosmic chronometer and supernovae Pantheon datasets. The evolution of the equation of state parameter(<em>ω</em>), energy density (<em>ρ</em>), pressure (<em>p</em>), cosmographic parameters, and the impact of the energy conditions with best-fit values of the model parameters are all thoroughly examined. We have also analyze Om diagnostic's behaviour and determine the present age of universe for this model.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"525 ","pages":"Article 129937"},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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