Pub Date : 2025-12-14DOI: 10.1016/j.physleta.2025.131262
Le Xiong, Yuxi Ji
CuO, as well-known intrinsic multiferroics with high transition temperature, has been studied widely in past decades. The experimental reports focus on its multiferroic phase transition and property improvement, such as high-Tc and large polarization. However, theoretical investigations to illustrate microscopic multiferroic mechanism were very rare to date. In this letter, we mainly study its multiferroic coupling mechanism in polarization P and magnetization M via quantum Green’s function method, combining with first-principle calculation. By constructing two-dimension spin model, we get the ferroelectric polarization P that results from spin order change with temperature, and two magnetic phase transition points TN1 and TN2 are noted. The existed largest polarization reaches 3.2 / at high temperature phase in our two dimension magnetic structure model. Moreover, the first principle calculation demonstrates its antiferromagnetic and multiferroic features.
{"title":"Studies of magnetic ferroelectricity in two-dimensional CuO using Green’s function method","authors":"Le Xiong, Yuxi Ji","doi":"10.1016/j.physleta.2025.131262","DOIUrl":"10.1016/j.physleta.2025.131262","url":null,"abstract":"<div><div>CuO, as well-known intrinsic multiferroics with high transition temperature, has been studied widely in past decades. The experimental reports focus on its multiferroic phase transition and property improvement, such as high-<em>T</em>c and large polarization. However, theoretical investigations to illustrate microscopic multiferroic mechanism were very rare to date. In this letter, we mainly study its multiferroic coupling mechanism in polarization <em>P</em> and magnetization <em>M</em> via quantum Green’s function method, combining with first-principle calculation. By constructing two-dimension spin model, we get the ferroelectric polarization <em>P</em> that results from spin order change with temperature, and two magnetic phase transition points <em>T</em><sub>N1</sub> and <em>T</em><sub>N2</sub> are noted. The existed largest polarization reaches 3.2 <span><math><mrow><mo>×</mo><msup><mrow><mn>10</mn></mrow><mn>2</mn></msup><mrow><mspace></mspace><mi>μ</mi><mi>C</mi></mrow></mrow></math></span>/<span><math><msup><mrow><mi>m</mi></mrow><mn>2</mn></msup></math></span> at high temperature phase in our two dimension magnetic structure model. Moreover, the first principle calculation demonstrates its antiferromagnetic and multiferroic features.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131262"},"PeriodicalIF":2.6,"publicationDate":"2025-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760773","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}
Pub Date : 2025-12-13DOI: 10.1016/j.physleta.2025.131260
Hao Cheng , Hong-Bao Cao , Chun-Sheng Liu , Xiao-Juan Ye
The progress of anode materials integrating excellent conductivity, high charge storage, and low ion diffusion resistance is essential to enhance the performance of metal-ion batteries. In this study, density functional theory (DFT) simulations are carried out to systematically investigate the B5C8 monolayer as an anode candidate for Na, K, and Ca ion storage. The metallic B5C8 sheet exhibits low diffusion barriers for ion transport (0.44 eV for Na, 0.30 eV for K, and 0.93 eV for Ca). In addition, it provides large theoretical storage capacities (2138.4 mAh g-1 for Na and K, and 4276.8 mAh g-1 for Ca) as well as appropriate open-circuit voltages (0.60 V, 0.74 V, and 0.44 V for Na/K/Ca, respectively). Molecular dynamics tests performed at 300 K verify that the B5C8 framework maintains structural integrity even when saturated with metal atoms. Moreover, when fully occupied by ions, the system undergoes only slight volume variations (0.83 % for Na, 0.61 % for K, and -0.99 % for Ca). Introducing vacancy defects not only provides additional adsorption sites but also facilitates ion migration by reducing the diffusion barriers. Taken together, these advantages indicate that B5C8 is a strong contender for future metal-ion battery anode applications.
研究集优异导电性、高电荷存储性和低离子扩散阻力于一体的阳极材料是提高金属离子电池性能的必要条件。在这项研究中，密度泛函理论（DFT）模拟进行了系统地研究B5C8单层作为Na， K和Ca离子存储的阳极候选。金属B5C8薄片具有较低的离子传输扩散势垒（Na为0.44 eV， K为0.30 eV， Ca为0.93 eV）。此外，它还提供了大的理论存储容量（Na和K为2138.4 mAh g-1， Ca为4276.8 mAh g-1）以及合适的开路电压（Na/K/Ca分别为0.60 V， 0.74 V和0.44 V）。在300 K下进行的分子动力学测试证实，即使在金属原子饱和的情况下，B5C8框架也能保持结构完整性。此外，当离子完全占据时，体系的体积变化很小（Na为0.83%，K为0.61%，Ca为- 0.99%）。引入空位缺陷不仅提供了额外的吸附位点，而且通过降低扩散屏障促进离子迁移。综上所述，这些优点表明B5C8是未来金属离子电池负极应用的有力竞争者。
{"title":"First-principles evaluation on metallic B5C8 as an anode material for non-lithium-ion batteries","authors":"Hao Cheng , Hong-Bao Cao , Chun-Sheng Liu , Xiao-Juan Ye","doi":"10.1016/j.physleta.2025.131260","DOIUrl":"10.1016/j.physleta.2025.131260","url":null,"abstract":"<div><div>The progress of anode materials integrating excellent conductivity, high charge storage, and low ion diffusion resistance is essential to enhance the performance of metal-ion batteries. In this study, density functional theory (DFT) simulations are carried out to systematically investigate the B<sub>5</sub>C<sub>8</sub> monolayer as an anode candidate for Na, K, and Ca ion storage. The metallic B<sub>5</sub>C<sub>8</sub> sheet exhibits low diffusion barriers for ion transport (0.44 eV for Na, 0.30 eV for K, and 0.93 eV for Ca). In addition, it provides large theoretical storage capacities (2138.4 mAh g<sup>-1</sup> for Na and K, and 4276.8 mAh g<sup>-1</sup> for Ca) as well as appropriate open-circuit voltages (0.60 V, 0.74 V, and 0.44 V for Na/K/Ca, respectively). Molecular dynamics tests performed at 300 K verify that the B<sub>5</sub>C<sub>8</sub> framework maintains structural integrity even when saturated with metal atoms. Moreover, when fully occupied by ions, the system undergoes only slight volume variations (0.83 % for Na, 0.61 % for K, and -0.99 % for Ca). Introducing vacancy defects not only provides additional adsorption sites but also facilitates ion migration by reducing the diffusion barriers. Taken together, these advantages indicate that B<sub>5</sub>C<sub>8</sub> is a strong contender for future metal-ion battery anode applications.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131260"},"PeriodicalIF":2.6,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760772","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}
Pub Date : 2025-12-13DOI: 10.1016/j.physleta.2025.131251
Elham A. Aldufeery
This study theoretically investigates the plasmonic behavior of coupled silver triangular nanoprism dimers using Electron Energy Loss Spectroscopy (EELS) simulations, comparing three distinct configurations: solid-solid (SSND), hollow-hollow (HHND), and asymmetric solid-hollow (SHND). The results show that the primary plasmon resonance in the hollow dimer is significantly redshifted compared to the solid dimer due to reduced tip polarizability. The asymmetric dimer exhibits an intermediate resonance resulting from plasmon hybridization. Most importantly, the structural asymmetry in the SHND localizes energy, confining specific modes to either the solid or hollow component. This unique property allows these asymmetric dimers to function as directional nanoantennas or selective “nanoreactors.” This research provides a valuable framework for designing complex plasmonic structures with on-demand optical properties for applications like enhanced spectroscopy and photocatalysis.
{"title":"Probing plasmonic coupling and symmetry breaking in silver nanoprism dimers","authors":"Elham A. Aldufeery","doi":"10.1016/j.physleta.2025.131251","DOIUrl":"10.1016/j.physleta.2025.131251","url":null,"abstract":"<div><div>This study theoretically investigates the plasmonic behavior of coupled silver triangular nanoprism dimers using Electron Energy Loss Spectroscopy (EELS) simulations, comparing three distinct configurations: solid-solid (SSND), hollow-hollow (HHND), and asymmetric solid-hollow (SHND). The results show that the primary plasmon resonance in the hollow dimer is significantly redshifted compared to the solid dimer due to reduced tip polarizability. The asymmetric dimer exhibits an intermediate resonance resulting from plasmon hybridization. Most importantly, the structural asymmetry in the SHND localizes energy, confining specific modes to either the solid or hollow component. This unique property allows these asymmetric dimers to function as directional nanoantennas or selective “nanoreactors.” This research provides a valuable framework for designing complex plasmonic structures with on-demand optical properties for applications like enhanced spectroscopy and photocatalysis.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131251"},"PeriodicalIF":2.6,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789470","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}
Pub Date : 2025-12-11DOI: 10.1016/j.physleta.2025.131241
Leonardo S. Lima
We investigate the interplay between quantum entanglement and transport phenomena in a noninteracting bosonic system described by the topological magnon insulator compound V2WS4. In particular, we analyze how entanglement measures namely, the entanglement negativity EN (relevant for mixed states) and the entanglement entropy respond to the presence of a nearest-neighbor Dzyaloshinskii-Moriya interaction (DMI) and out-of-plane easy axis anisotropy. The DMI generates an emergent gauge flux that breaks pseudospin time-reversal symmetry, thereby stabilizing a topological magnon insulator (TMI) phase characterized by a finite Chern number and a nontrivial magnon Hall effect. Moreover, it leads to an exotic Chern insulating (CI) regime in the bosonic spectrum. Our central focus is to quantify the impact of these topological transitions on quantum correlations. We compute EN as a function of temperature, DMI strength, and single-ion anisotropy, aiming to correlate variations in the magnon band topology with signatures in mixed-state entanglement. This allows us to probe how the emergence of chiral edge magnons and band inversions influence the structure of nonclassical correlations in topological magnon systems.
{"title":"Interplay of entanglement measures and transport phenomena in a two-dimensional topological magnon insulator","authors":"Leonardo S. Lima","doi":"10.1016/j.physleta.2025.131241","DOIUrl":"10.1016/j.physleta.2025.131241","url":null,"abstract":"<div><div>We investigate the interplay between quantum entanglement and transport phenomena in a noninteracting bosonic system described by the topological magnon insulator compound V<sub>2</sub>WS<sub>4</sub>. In particular, we analyze how entanglement measures namely, the entanglement negativity <em>E<sub>N</sub></em> (relevant for mixed states) and the entanglement entropy respond to the presence of a nearest-neighbor Dzyaloshinskii-Moriya interaction (DMI) and out-of-plane easy axis anisotropy. The DMI generates an emergent gauge flux that breaks pseudospin time-reversal symmetry, thereby stabilizing a topological magnon insulator (TMI) phase characterized by a finite Chern number and a nontrivial magnon Hall effect. Moreover, it leads to an exotic Chern insulating (CI) regime in the bosonic spectrum. Our central focus is to quantify the impact of these topological transitions on quantum correlations. We compute <em>E<sub>N</sub></em> as a function of temperature, DMI strength, and single-ion anisotropy, aiming to correlate variations in the magnon band topology with signatures in mixed-state entanglement. This allows us to probe how the emergence of chiral edge magnons and band inversions influence the structure of nonclassical correlations in topological magnon systems.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131241"},"PeriodicalIF":2.6,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760766","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}
Pub Date : 2025-12-11DOI: 10.1016/j.physleta.2025.131248
Patrick Hinrichs , Nader Inan , Douglas Singleton
We study the effect of a time-varying solenoidal vector potential for a quantum particle confined to a ring. The setup appears to be a time-varying version of the Aharonov-Bohm effect, but since the particle moves in the presence of fields, it is not strictly an Aharonov-Bohm effect. The results are similar to the ac Stark effect, but with a time-varying electric field coming from the vector potential, rather than the scalar potential. We compare and contrast the present effect with the standard ac Stark effect. The signature of this setup is the generation of quasi-energy sidebands which are observable via spectroscopy.
{"title":"AC Stark effect or time-dependent Aharonov-Bohm effect for particle on a ring","authors":"Patrick Hinrichs , Nader Inan , Douglas Singleton","doi":"10.1016/j.physleta.2025.131248","DOIUrl":"10.1016/j.physleta.2025.131248","url":null,"abstract":"<div><div>We study the effect of a time-varying solenoidal vector potential for a quantum particle confined to a ring. The setup appears to be a time-varying version of the Aharonov-Bohm effect, but since the particle moves in the presence of fields, it is not strictly an Aharonov-Bohm effect. The results are similar to the ac Stark effect, but with a time-varying electric field coming from the vector potential, rather than the scalar potential. We compare and contrast the present effect with the standard ac Stark effect. The signature of this setup is the generation of quasi-energy sidebands which are observable via spectroscopy.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131248"},"PeriodicalIF":2.6,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789413","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}
Pub Date : 2025-12-11DOI: 10.1016/j.physleta.2025.131227
Anupam Ghosh
{"title":"Corrigendum to “Conditional mutual information: A generalization of causal inference in quantum systems” [Physics Letters A 564 (2025) 131089]","authors":"Anupam Ghosh","doi":"10.1016/j.physleta.2025.131227","DOIUrl":"10.1016/j.physleta.2025.131227","url":null,"abstract":"","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"568 ","pages":"Article 131227"},"PeriodicalIF":2.6,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738386","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}
The simultaneous quantum and classical communication (SQCC) system implements continuous variable quantum key distribution (CVQKD) and classical communication using the same basic communication facilities. However, the SQCC system has a very low tolerance for phase noise, which affects its transmission distance and secret key rate under the local local oscillator (LO) design. In order to reduce the phase noise in the SQCC system, this paper proposes a method to automatically compensate the signal phase based on the long-short-term memory network (LSTM) model. Firstly, the LSTM model is trained to predict the phase value of the reference pulse during operation. Then the predicted value of the LSTM model to compensate for the phase drift of the quantum signal, thus reducing the phase noise. The results demonstrate that the automatic phase compensation method based on LSTM exhibits excellent prediction performance and compensation accuracy, which can significantly improve the transmission distance and secret key rate of the SQCC system without requiring any additional quantum resources and extra experimental hardware.
{"title":"Phase compensation for simultaneous quantum and classical communication system based on deep learning","authors":"Zhuo Kang, Wei-Qi Liu, Shan Zhao, Yu-Hao Sun, Zheng-Wen Cao, Chen He","doi":"10.1016/j.physleta.2025.131246","DOIUrl":"10.1016/j.physleta.2025.131246","url":null,"abstract":"<div><div>The simultaneous quantum and classical communication (SQCC) system implements continuous variable quantum key distribution (CVQKD) and classical communication using the same basic communication facilities. However, the SQCC system has a very low tolerance for phase noise, which affects its transmission distance and secret key rate under the local local oscillator (LO) design. In order to reduce the phase noise in the SQCC system, this paper proposes a method to automatically compensate the signal phase based on the long-short-term memory network (LSTM) model. Firstly, the LSTM model is trained to predict the phase value of the reference pulse during operation. Then the predicted value of the LSTM model to compensate for the phase drift of the quantum signal, thus reducing the phase noise. The results demonstrate that the automatic phase compensation method based on LSTM exhibits excellent prediction performance and compensation accuracy, which can significantly improve the transmission distance and secret key rate of the SQCC system without requiring any additional quantum resources and extra experimental hardware.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131246"},"PeriodicalIF":2.6,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760767","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}
Pub Date : 2025-12-10DOI: 10.1016/j.physleta.2025.131237
Xin-Kai Chu, Hai-Qiang Zhang, Yu-Mei Xing, Xin-Yi Wang
This paper investigates novel types of dispersive shock waves (DSWs) in the Lakshmanan-Porsezian-Daniel (LPD) model using Whitham modulation theory for Gurevich-Pitaevskii problem, which extends the nonlinear Schrodinger equation by incorporating higher-order physical effects such as intense pulse propagation in nonlinear optics, plasma physics and spin dynamics. These additional terms are crucial for accurately modeling wave phenomena beyond the scope of standard models, leading to far richer shock dynamics. The finite-gap integration method is employed to derive periodic solutions and the associated Whitham modulation equations. By analyzing the distributions of the Riemann invariants, we identify the fundamental wave structures generated from the initial data. Key findings include 1-genus and 2-genus DSWs for one step-like initial condition, where the former is characterized by one constant and three varying Riemann invariants. For two step-like initial conditions, we observe the formation of 3-genus DSWs resulting from the collision between 1-genus and 2-genus DSWs or between two counter-propagating 2-genus DSWs.
{"title":"Evolution of dispersive shock waves to the Lakshmanan-Porsezian-Daniel model","authors":"Xin-Kai Chu, Hai-Qiang Zhang, Yu-Mei Xing, Xin-Yi Wang","doi":"10.1016/j.physleta.2025.131237","DOIUrl":"10.1016/j.physleta.2025.131237","url":null,"abstract":"<div><div>This paper investigates novel types of dispersive shock waves (DSWs) in the Lakshmanan-Porsezian-Daniel (LPD) model using Whitham modulation theory for Gurevich-Pitaevskii problem, which extends the nonlinear Schrodinger equation by incorporating higher-order physical effects such as intense pulse propagation in nonlinear optics, plasma physics and spin dynamics. These additional terms are crucial for accurately modeling wave phenomena beyond the scope of standard models, leading to far richer shock dynamics. The finite-gap integration method is employed to derive periodic solutions and the associated Whitham modulation equations. By analyzing the distributions of the Riemann invariants, we identify the fundamental wave structures generated from the initial data. Key findings include 1-genus and 2-genus DSWs for one step-like initial condition, where the former is characterized by one constant and three varying Riemann invariants. For two step-like initial conditions, we observe the formation of 3-genus DSWs resulting from the collision between 1-genus and 2-genus DSWs or between two counter-propagating 2-genus DSWs.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131237"},"PeriodicalIF":2.6,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789412","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}
Pub Date : 2025-12-10DOI: 10.1016/j.physleta.2025.131244
Hui-Kang Li, Mou Yang
We investigate low energy transport in twisted junctions comprising two identical higher-order (HO) Weyl semimetals (WSMs) proposed in [Phys. Rev. Lett. 125, 266804 (2020)], with one crystal rotated about the interface normal by an angle. Each HO WSM hosts a pair of HO Weyl points (WPs) and a pair of conventional WPs, all aligned perpendicular to the interface. We find that electrons from HO valleys of the source are transmitted to HO valleys in the drain and those from conventional valleys are transmitted to conventional valleys. The twist cannot lead to the electron transfer between valleys of different types but turns on the transmission between different valleys of same type. The confinement effect of the junction with small cross-section is also discussed in ultra-low energy region where transport is dominated by chiral surface modes.
{"title":"Valley selective transport in twisted higher-order Weyl semimetal junctions","authors":"Hui-Kang Li, Mou Yang","doi":"10.1016/j.physleta.2025.131244","DOIUrl":"10.1016/j.physleta.2025.131244","url":null,"abstract":"<div><div>We investigate low energy transport in twisted junctions comprising two identical higher-order (HO) Weyl semimetals (WSMs) proposed in [Phys. Rev. Lett. 125, 266804 (2020)], with one crystal rotated about the interface normal by an angle. Each HO WSM hosts a pair of HO Weyl points (WPs) and a pair of conventional WPs, all aligned perpendicular to the interface. We find that electrons from HO valleys of the source are transmitted to HO valleys in the drain and those from conventional valleys are transmitted to conventional valleys. The twist cannot lead to the electron transfer between valleys of different types but turns on the transmission between different valleys of same type. The confinement effect of the junction with small cross-section is also discussed in ultra-low energy region where transport is dominated by chiral surface modes.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131244"},"PeriodicalIF":2.6,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789471","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}
Pub Date : 2025-12-09DOI: 10.1016/j.physleta.2025.131240
Jinlong Ma , Lei Zhou
Community structures, which are commonly found in networks, play a crucial role in influencing network trafficdynamics. A pronounced community structure often exerts a negative impact on network traffic capacity. A link deletion strategy (LDS) is proposed, which can optimize network traffic capacity by selectively weakening the community structure. The strategy integrates k-core decomposition with degree-weighted link indicators to selectively remove intra-community links. This approach facilitates a more even distribution of traffic load from central nodes to non-central nodes, thereby alleviating congestion and improving traffic capacity. Through simulations, it is shown that, under the optimal link deletion ratio coefficient f, the network’s traffic capacity exceeds that of the initial network by more than 50 %. The LDS strategy effectively weakens the community structure, enhances network traffic capacity, and mitigates network congestion.
{"title":"Enhancing network traffic capacity by k-core and degree-weighted link deletion strategy","authors":"Jinlong Ma , Lei Zhou","doi":"10.1016/j.physleta.2025.131240","DOIUrl":"10.1016/j.physleta.2025.131240","url":null,"abstract":"<div><div>Community structures, which are commonly found in networks, play a crucial role in influencing network trafficdynamics. A pronounced community structure often exerts a negative impact on network traffic capacity. A link deletion strategy (LDS) is proposed, which can optimize network traffic capacity by selectively weakening the community structure. The strategy integrates <em>k</em>-core decomposition with degree-weighted link indicators to selectively remove intra-community links. This approach facilitates a more even distribution of traffic load from central nodes to non-central nodes, thereby alleviating congestion and improving traffic capacity. Through simulations, it is shown that, under the optimal link deletion ratio coefficient <em>f</em>, the network’s traffic capacity exceeds that of the initial network by more than 50 %. The LDS strategy effectively weakens the community structure, enhances network traffic capacity, and mitigates network congestion.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"569 ","pages":"Article 131240"},"PeriodicalIF":2.6,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760771","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}
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