New Journal of Physics最新文献_第4页

Inferring to cooperate: Evolutionary games with Bayesian inferential strategies 推断合作：具有贝叶斯推断策略的进化博弈

New Journal of Physics Pub Date : 2024-05-21 DOI: 10.1088/1367-2630/ad4e5e

Arunava Patra, Supratim Sengupta, Ayan Paul, Sagar Chakraborty

{"title":"Inferring to cooperate: Evolutionary games with Bayesian inferential strategies","authors":"Arunava Patra, Supratim Sengupta, Ayan Paul, Sagar Chakraborty","doi":"10.1088/1367-2630/ad4e5e","DOIUrl":"https://doi.org/10.1088/1367-2630/ad4e5e","url":null,"abstract":"\u0000 Strategies for sustaining cooperation and preventing exploitation by selﬁsh agents in repeated games have mostly been restricted to Markovian strategies where the response of an agent depends on the actions in the previous round. Such strategies are characterized by lack of learning. However, learning from accumulated evidence over time and using the evidence to dynamically update our response is a key feature of living organisms. Bayesian inference provides a framework for such evidence-based learning mechanisms. It is therefore imperative to understand how strategies based on Bayesian learning fare in repeated games with Markovian strategies. Here, we consider a scenario where the Bayesian player uses the accumulated evidence of the opponent’s actions over several rounds to continuously update her belief about the reactive opponent’s strategy. The Bayesian player can then act on her inferred belief in diﬀerent ways. By studying repeated Prisoner’s dilemma games with such Bayesian inferential strategies, both in inﬁnite and ﬁnite populations, we identify the conditions under which such strategies can be evolutionarily stable. We ﬁnd that a Bayesian strategy that is less altruistic than the inferred belief about the opponent’s strategy can outperform a larger set of reactive strategies, whereas one that is more generous than the inferred belief is more successful when the beneﬁt-to-cost ratio of mutual cooperation is high. Our analysis reveals how learning the opponent’s strategy through Bayesian inference, as opposed to utility maximization, can be beneﬁcial in the long run, in preventing exploitation and eventual invasion by reactive strategies.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":"117 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141115739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Binary system modes of matrix-coupled multidimensional oscillators 矩阵耦合多维振荡器的二元系统模式

New Journal of Physics Pub Date : 2024-05-21 DOI: 10.1088/1367-2630/ad4e5a

Chongzhi Wang, Haibin Shao, Ying Tan, Dewei Li

{"title":"Binary system modes of matrix-coupled multidimensional oscillators","authors":"Chongzhi Wang, Haibin Shao, Ying Tan, Dewei Li","doi":"10.1088/1367-2630/ad4e5a","DOIUrl":"https://doi.org/10.1088/1367-2630/ad4e5a","url":null,"abstract":"\u0000 The standard Kuramoto model has been instrumental in explaining synchronization and desynchronization, two emergent phenomena often observed in biological, neuronal, and physical systems. While the Kuramoto model has turned out effective with one-dimensional oscillators, real-world systems often involve high-dimensional interacting units, such as biological swarms, necessitating a model of multidimensional oscillators. However, existing high-dimensional generalizations of the Kuramoto model commonly rely on a scalar-valued coupling strength, which limits their ability to capture the full complexity of high-dimensional interactions. This work introduces a matrix, A, to couple the interconnected components of the oscillators in a d-dimensional space, leading to a matrix-coupled multidimensional Kuramoto model that approximates a prototypical swarm dynamics by its first-order harmonics. Moreover, the matrix A introduces an inter-dimensional higher-order interaction that partly accounts for the emergence of 2^{d} system modes in a d-dimensional population, where each dimension can either be synchronized or desynchronized, represented by a set of almost binary order parameters. The binary system modes capture characteristic swarm behaviors such as fish milling or polarized schooling. Additionally, our findings provides a theoretical analogy to cerebral activity, where the resting state and the activated state coexist unihemispherically. It also suggests a new possibility for information storage in oscillatory neural networks.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141114594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards minimal self-testing of qubit states and measurements in prepare-and-measure scenarios 在 "准备-测量 "场景中实现最小量的量子比特状态自测和测量

New Journal of Physics Pub Date : 2024-05-21 DOI: 10.1088/1367-2630/ad4e5c

Gábor Drótos, K. F. Pál, Abdelmalek Taoutioui, Tamás Vértesi

{"title":"Towards minimal self-testing of qubit states and measurements in prepare-and-measure scenarios","authors":"Gábor Drótos, K. F. Pál, Abdelmalek Taoutioui, Tamás Vértesi","doi":"10.1088/1367-2630/ad4e5c","DOIUrl":"https://doi.org/10.1088/1367-2630/ad4e5c","url":null,"abstract":"\u0000 Self-testing is a promising approach to certifying quantum states or measurements. Originally, it relied solely on the output statistics of the measurements involved in a device-independent setup. Extra physical assumptions about the system make the setup semi-device-independent. In the latter setup, we consider a prepare-and-measure scenario in which the dimension of the mediating particle is assumed to be two. In a setup involving four (three) preparations and three (two) projective measurements in addition to the target, we exemplify how to self-test any four- (three-) outcome extremal positive operator-valued measure using a linear witness. One of our constructions also achieves self-testing of any number of states with the help of as many projective measurements as the dimensionality of the space spanned by the corresponding Bloch vectors. These constructions are conjectured to be minimal in terms of the number of preparations and measurements required. In addition, we implement one of our constructions in the prepare-and-measure setup on IBM and IonQ quantum processors and certify the existence of a complex qubit Hilbert space based on the data obtained from these experiments.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":"92 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141116232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple skin transitions in two-band non-Hermitian systems with long-range nonreciprocal hopping 具有长程非互易跳变的双波段非赫米提系统中的多重皮层转换

New Journal of Physics Pub Date : 2024-05-08 DOI: 10.1088/1367-2630/ad48ab

Ye-Wei-Yi Li, Xiao-Feng Nie, Wen-Xue Cui, Hong-Fu Wang

{"title":"Multiple skin transitions in two-band non-Hermitian systems with long-range nonreciprocal hopping","authors":"Ye-Wei-Yi Li, Xiao-Feng Nie, Wen-Xue Cui, Hong-Fu Wang","doi":"10.1088/1367-2630/ad48ab","DOIUrl":"https://doi.org/10.1088/1367-2630/ad48ab","url":null,"abstract":"\u0000 Non-Hermitian skin effect is a prominent feature in non-Hermitian physics, leading to novel topological properties and expanding the traditional energy band theories. In this paper, we investigate a two-band non-Hermitian system in which multiple skin transitions are induced by long-range nonreciprocal hopping. The spectral winding number under periodic boundary conditions reveals the localization directions of skin states. Further, we present the analytical solution of transition points by tracing the self-intersecting points on the complex plane. Interestingly, the current system exhibits the abundant non-Hermitian skin effects, including the normal, W-shaped, and bipolar localization properties, which the eigenstate distributions and the generalized Brillouin zone can clearly illustrate. We also provide a phase diagram to represent the skin transition properties of the system comprehensively. Further, we demonstrate that the multimer non-Hermitian lattices also present the anomalous skin effect and multiple transitions, which occur in the region of the bulk band touching, the same as the two-band lattice. Moreover, a feasible scheme is proposed to realize the current non-Hermitian system with long-range nonreciprocal hopping by a topoelectrical circuit. This work further supplies the content of skin transitions and may help us explore more plentiful localization features in the two-band non-Hermitian systems.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141129164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Collisional-radiative modeling for the EUV spectrum of W40+ - W42+ ions W40+ - W42+ 离子超紫外光谱的碰撞辐射模型

New Journal of Physics Pub Date : 2024-04-24 DOI: 10.1088/1367-2630/ad42c8

Lirong Lei, Xiaobin Ding, Cunqiang Wu, Denghong Zhang, Ling Zhang, Fengling Zhang, Ke Yao, Yang Yang, Yunqing Fu, Chen-Zhong Dong

引用次数: 0

Data Classification and Parameter Estimations with Deep Learning to the Simulated Time-domain High-frequency Gravitational Waves Detections 利用深度学习对模拟时域高频引力波探测进行数据分类和参数估计

New Journal of Physics Pub Date : 2024-04-23 DOI: 10.1088/1367-2630/ad4204

bing shi, xiulin yuan, Hao Zheng, Xudong Wang, Jin Li, Qing-Quan Jiang, Fangyu Li, Lian Fu Wei

{"title":"Data Classification and Parameter Estimations with Deep Learning to the Simulated Time-domain High-frequency Gravitational Waves Detections","authors":"bing shi, xiulin yuan, Hao Zheng, Xudong Wang, Jin Li, Qing-Quan Jiang, Fangyu Li, Lian Fu Wei","doi":"10.1088/1367-2630/ad4204","DOIUrl":"https://doi.org/10.1088/1367-2630/ad4204","url":null,"abstract":"\u0000 High-frequency Gravitational wave (HFGW) detection is a great challenge, as its signal is significantly weak, compared with the relevant background noise in the same frequency band. Therefore, besides designing and running the feasible installation for the experimental weak-signal detection, developing various effective approaches to process the big detected data for extracting the information 1about the GWs is also particularly important. In this paper, we focus on the simulated time-domain detected data of the electromagnetic response of the GWs in high frequency band, typically such as Gigahertzs. Specifically, we develop an effective deep learning method to implement the classification of the simulated detection data, which includes the strong electromagnetic background noise in the same frequency band, for the parameter estimations of the HFGWs. The simulatively detected data is generated by the transverse first-order electromagnetic responses of the HFGWs passing through a high stationary magnetic field biased by a high frequency Gaussian beam. We propose a convolutional neural network (CNN) model to implement the classification of the simulated detection data, whose accuracy can reach more than 90%. With these data being served as the positive sample datasets, the physical parameters of the simulatively detected HFGWs can be effectively estimated by matching the sample datasets with the noise-free template library one by one. The confidence levels of these extracted parameters can reach to 95% in the corresponding confidence interval. By the multiple data experiments, the effectiveness and reliability of the proposed data processing method is verified. Hopefully, the proposed method could be generalized to the big data processing for the experimental HFGWs detections, in future.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":"37 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Spindle Approximation of Network Epidemiological Modeling 网络流行病学建模的主轴近似法

New Journal of Physics Pub Date : 2024-04-18 DOI: 10.1088/1367-2630/ad4050

Jianhong Mou, Bitao Dai, Suoyi Tan, P. Holme, Sune Lehmann, Fredrik Liljeros, Xin Lu

{"title":"The Spindle Approximation of Network Epidemiological Modeling","authors":"Jianhong Mou, Bitao Dai, Suoyi Tan, P. Holme, Sune Lehmann, Fredrik Liljeros, Xin Lu","doi":"10.1088/1367-2630/ad4050","DOIUrl":"https://doi.org/10.1088/1367-2630/ad4050","url":null,"abstract":"\u0000 Understanding the dynamics of spreading and diffusion on networks is of critical importance for a variety of processes in real life. However, predicting the temporal evolution of diffusion on networks remains challenging as the process is shaped by network topology, spreading non-linearities, and heterogeneous adaptation behavior. In this study, we propose the spindle vector, a new network topological feature, which shapes nodes according to the distance from the root node. The spindle vector captures the relative order of nodes in diffusion propagation, thus allowing us to approximate the spatiotemporal evolution of diffusion dynamics on networks. The approximation simplifies the detailed connections of node pairs by only focusing on the nodal count within individual layers and the interlayer connections, seeking a compromise between efficiency and complexity. Through experiments on various networks, we show that our method outperforms the state-of-the-art on BA networks with an average improvement of 38.6% on the Mean Absolute Error (MAE). Additionally, the predictive accuracy of our method exhibits a notable convergence with the Pairwise Approximation (PA) approach with the increasing presence of quadrangles and pentagons in WS networks. The new metric provides a general and computationally efficient approach to predict network diffusion problems and is of potential for a large range of network applications.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":" 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discriminatory resonance energy transfer mediated by a chiral environment 手性环境介导的鉴别性共振能量转移

New Journal of Physics Pub Date : 2024-04-17 DOI: 10.1088/1367-2630/ad3f9c

J. C. Franz, S. Buhmann, A. Salam

引用次数: 0

Thin Film Sensing near Exceptional Point utilizing Terahertz Plasmonic Metasurfaces 利用太赫兹等离子体元表面实现特异点附近的薄膜传感

New Journal of Physics Pub Date : 2024-04-17 DOI: 10.1088/1367-2630/ad3fe0

I. K. N., Dibakar Roy Chowdhury

{"title":"Thin Film Sensing near Exceptional Point utilizing Terahertz Plasmonic Metasurfaces","authors":"I. K. N., Dibakar Roy Chowdhury","doi":"10.1088/1367-2630/ad3fe0","DOIUrl":"https://doi.org/10.1088/1367-2630/ad3fe0","url":null,"abstract":"\u0000 Non-Hermitian quantum systems along with engineered metasurfaces enable a versatile podium for sensor designs from industrial to medical sectors. The singularity points known as Exceptional points (EP) can be realized in such non-Hermitian systems. EP demonstrates a square root topology on minute perturbations, hence promising to be a potential candidate to sense external parameters, such as temperature, thermal fluctuations, refractive index, and biomolecules. Hence, in this work, through numerical and analytical investigations, we explore the sensing capabilities in the vicinity of EP utilizing suitably designed terahertz metasurfaces. Here, we propose a non-Hermitian metasystem comprising two orthogonally twisted square split ring resonators coupled by near-field EM (Electromagnetic) interactions that can exhibit dark-bright modes. In such a system, the presence of an active (photo-doped) material in the split gap of one of the resonators opens up an effective avenue to introduce controllable asymmetric losses, ultimately leading to the emergence of exceptional points in the polarization space. Hence, thin film sensing at the proximity of the emerged exceptional point is investigated for different refractive indices by coating with an overlayer atop the metasurface. In such a configuration, the sensitivities of the eigenstates are calculated in terms of the Refractive Index Unit, which turns out to be - 0.044 THz/RIU and - 0.063 THz/RIU when the system is perturbed near EP. Our proposed metasurface-inspired EP-based sensing strategy can open up novel ways to sense the refractive index of unknown materials besides other physical parameters.","PeriodicalId":508829,"journal":{"name":"New Journal of Physics","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140690719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Competition between self- and other-regarding preferences in resolving social dilemmas 在解决社会两难问题时，关注自我和关注他人的偏好之间的竞争

New Journal of Physics Pub Date : 2024-04-16 DOI: 10.1088/1367-2630/ad3f3e

Chaoqian Wang, A. Szolnoki

引用次数: 0