Pub Date : 2025-04-04DOI: 10.1016/j.physleta.2025.130515
Zhi-Xian Wang, Han-Zhao Tang
We investigate the non-Abelian braiding of Majorana zero modes (MZMs) in one-dimensional topological superconducting B-form single-stranded DNA (ssDNA). An effective model is proposed for the braiding of MZMs by utilizing a quantum dot(QD) and locally tunable gates. We illustrate the process of constructing state initialization and measurement by manipulating the coupling strength. Importantly, MZMs can maintain stability during the braiding process, which demonstrates that the other states can be entirely prevented from mixing with MZMs in ssDNA. We also apply this approach to detect MZMs in topological superconducting ssDNA. Our proposal provides a novel approach to experimentally confirm the non-Abelian statistical properties of MZMs in organic molecules.
{"title":"Non-Abelian braiding of Majorana zero modes in B-form single-stranded DNA with s-wave superconductor","authors":"Zhi-Xian Wang, Han-Zhao Tang","doi":"10.1016/j.physleta.2025.130515","DOIUrl":"10.1016/j.physleta.2025.130515","url":null,"abstract":"<div><div>We investigate the non-Abelian braiding of Majorana zero modes (MZMs) in one-dimensional topological superconducting B-form single-stranded DNA (ssDNA). An effective model is proposed for the braiding of MZMs by utilizing a quantum dot(QD) and locally tunable gates. We illustrate the process of constructing state initialization and measurement by manipulating the coupling strength. Importantly, MZMs can maintain stability during the braiding process, which demonstrates that the other states can be entirely prevented from mixing with MZMs in ssDNA. We also apply this approach to detect MZMs in topological superconducting ssDNA. Our proposal provides a novel approach to experimentally confirm the non-Abelian statistical properties of MZMs in organic molecules.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"546 ","pages":"Article 130515"},"PeriodicalIF":2.3,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785079","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 : 2025-04-04DOI: 10.1016/j.physleta.2025.130516
Lang-Xing Cheng , Dan-Bo Zhang
Variational quantum algorithms provide feasible approaches for simulating quantum systems and are widely applied. For lattice gauge theory, however, variational quantum simulation faces a challenge as local gauge invariance enforces a constraint on the physical Hilbert space. In this paper, we incorporate multi-objective optimization for variational quantum simulation of lattice gauge theory at zero and finite temperatures. By setting energy or free energy of the system and penalty for enforcing the local gauge invariance as two objectives, the multi-objective optimization can self-adjust the proper weighting for two objectives and thus faithfully simulate the gauge theory in the physical Hilbert space. Specifically, we propose variational quantum eigensolver and variational quantum thermalizer for preparing the ground states and thermal states of lattice gauge theory, respectively. We demonstrate the quantum algorithms for a lattice gauge theory with spinless fermion in one dimension. With numeral simulations, the multi-objective optimization shows that minimizing energy (free energy) and enforcing the local gauge invariance can be achieved simultaneously at zero temperature (finite temperature). The multi-objective optimization suggests a feasible ingredient for quantum simulation of complicated physical systems on near-term quantum devices.
{"title":"Variational quantum simulation of ground states and thermal states for lattice gauge theory with multi-objective optimization","authors":"Lang-Xing Cheng , Dan-Bo Zhang","doi":"10.1016/j.physleta.2025.130516","DOIUrl":"10.1016/j.physleta.2025.130516","url":null,"abstract":"<div><div>Variational quantum algorithms provide feasible approaches for simulating quantum systems and are widely applied. For lattice gauge theory, however, variational quantum simulation faces a challenge as local gauge invariance enforces a constraint on the physical Hilbert space. In this paper, we incorporate multi-objective optimization for variational quantum simulation of lattice gauge theory at zero and finite temperatures. By setting energy or free energy of the system and penalty for enforcing the local gauge invariance as two objectives, the multi-objective optimization can self-adjust the proper weighting for two objectives and thus faithfully simulate the gauge theory in the physical Hilbert space. Specifically, we propose variational quantum eigensolver and variational quantum thermalizer for preparing the ground states and thermal states of lattice gauge theory, respectively. We demonstrate the quantum algorithms for a <span><math><msub><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> lattice gauge theory with spinless fermion in one dimension. With numeral simulations, the multi-objective optimization shows that minimizing energy (free energy) and enforcing the local gauge invariance can be achieved simultaneously at zero temperature (finite temperature). The multi-objective optimization suggests a feasible ingredient for quantum simulation of complicated physical systems on near-term quantum devices.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"546 ","pages":"Article 130516"},"PeriodicalIF":2.3,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791251","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 : 2025-04-03DOI: 10.1016/j.physleta.2025.130508
Saurab Das , Jayanta Bera , Ajay Nath
In this work, we propose a management method for controlling the speed and direction of self-bound quantum droplets in a binary Bose-Einstein condensate mixture under time-modulated external harmonic confinement. Using the 1D extended Gross-Pitäevskii equation, QDs are constructed within regular and expulsive parabolic traps, considering temporally varying attractive quadratic beyond mean field and repulsive cubic mean-field atom-atom interactions. Through the derived wavefunction solution, we illustrate the dynamics of slowing, stopping, reversing, spatial fragmentation, collapse, and revival of droplets. Additionally, the solutions reveal a crystalline order with a superfluid background, indicative of supersolid behavior in various parameter domains. In particular, one third of the constant background matches the lowest residual condensate. These findings hold potential applications in matter-wave interferometry and quantum information processing.
{"title":"Quantum droplet speed management and supersolid behavior in external harmonic confinement","authors":"Saurab Das , Jayanta Bera , Ajay Nath","doi":"10.1016/j.physleta.2025.130508","DOIUrl":"10.1016/j.physleta.2025.130508","url":null,"abstract":"<div><div>In this work, we propose a management method for controlling the speed and direction of self-bound quantum droplets in a binary Bose-Einstein condensate mixture under time-modulated external harmonic confinement. Using the 1D extended Gross-Pitäevskii equation, QDs are constructed within regular and expulsive parabolic traps, considering temporally varying attractive quadratic beyond mean field and repulsive cubic mean-field atom-atom interactions. Through the derived wavefunction solution, we illustrate the dynamics of slowing, stopping, reversing, spatial fragmentation, collapse, and revival of droplets. Additionally, the solutions reveal a crystalline order with a superfluid background, indicative of supersolid behavior in various parameter domains. In particular, one third of the constant background matches the lowest residual condensate. These findings hold potential applications in matter-wave interferometry and quantum information processing.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"546 ","pages":"Article 130508"},"PeriodicalIF":2.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776641","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}
This study investigates the effects of Ga substitution at three distinct lattice sites (Mn, Co, Ge) in MnCoGe alloys to elucidate the relationship between substitution sites and phase transition regulation. The results demonstrate site-dependent efficiency in phase transition control: Ga substitution at Mn sites effectively lowers structural transition temperatures while enabling coupled magneto-structural transitions, causing the large magnetocaloric effects; substitution at Co sites exhibits the unusual capability to only tune the structural transition of cooling process into the Curie temperature window; conversely, substitution at Ge sites shows negligible phase transition modulation. These findings systematically map substitution site efficacy to transition tuning capabilities and their resultant MCE magnitudes, providing critical guidance for strategic site selection targeting enhanced magnetocaloric performance in solid-state refrigeration systems.
{"title":"Exploring the effects of substitution site selectivity on structural transition and magnetocaloric effect in MnCoGe alloy","authors":"Hao Zhang, Lifu Bao, Xudong Zhang, Yongzhuo Sang, Yunzhe Ding, Jilong Gao, Danan Zhao, Hongwei Zhang, Ming Tian, Yuting Bai, Zhijie Li","doi":"10.1016/j.physleta.2025.130503","DOIUrl":"10.1016/j.physleta.2025.130503","url":null,"abstract":"<div><div>This study investigates the effects of Ga substitution at three distinct lattice sites (Mn, Co, Ge) in MnCoGe alloys to elucidate the relationship between substitution sites and phase transition regulation. The results demonstrate site-dependent efficiency in phase transition control: Ga substitution at Mn sites effectively lowers structural transition temperatures while enabling coupled magneto-structural transitions, causing the large magnetocaloric effects; substitution at Co sites exhibits the unusual capability to only tune the structural transition of cooling process into the Curie temperature window; conversely, substitution at Ge sites shows negligible phase transition modulation. These findings systematically map substitution site efficacy to transition tuning capabilities and their resultant MCE magnitudes, providing critical guidance for strategic site selection targeting enhanced magnetocaloric performance in solid-state refrigeration systems.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"545 ","pages":"Article 130503"},"PeriodicalIF":2.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759972","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 : 2025-04-02DOI: 10.1016/j.physleta.2025.130513
Rui Cong, Dajun Liu, Yan Yin, Haiyang Zhong, Yaochuan Wang, Guiqiu Wang
The expression of partially coherent circularly polarized vortex beams (PCCPVBs) is introduced, and the matrix elements of a PCCPVB in oceanic turbulence are derived. The evolution of intensity and coherence of such PCCPVB is studied. The ring shape of a PCCPVB will gradually lose and become a spot pattern during propagation, and the PCCPVB with a smaller , and will become a spot pattern more quickly. The intensity of a PCCPVB can show the flat profile when this PCCPVB propagates in free space, and the same PCCPVB in oceanic turbulence can show the Gaussian profile. The coherence of a PCCPVB in oceanic turbulence will decrease faster than the same PCCPVB in free space. The results may find application in underwater optical systems using circularly polarized beams.
{"title":"Research on characteristics of partially coherent circularly polarized vortex beam in oceanic turbulence","authors":"Rui Cong, Dajun Liu, Yan Yin, Haiyang Zhong, Yaochuan Wang, Guiqiu Wang","doi":"10.1016/j.physleta.2025.130513","DOIUrl":"10.1016/j.physleta.2025.130513","url":null,"abstract":"<div><div>The expression of partially coherent circularly polarized vortex beams (PCCPVBs) is introduced, and the matrix elements of a PCCPVB in oceanic turbulence are derived. The evolution of intensity and coherence of such PCCPVB is studied. The ring shape of a PCCPVB will gradually lose and become a spot pattern during propagation, and the PCCPVB with a smaller <span><math><mi>σ</mi></math></span>, and <span><math><mi>M</mi></math></span> will become a spot pattern more quickly. The intensity of a PCCPVB can show the flat profile when this PCCPVB propagates in free space, and the same PCCPVB in oceanic turbulence can show the Gaussian profile. The coherence of a PCCPVB in oceanic turbulence will decrease faster than the same PCCPVB in free space. The results may find application in underwater optical systems using circularly polarized beams.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"545 ","pages":"Article 130513"},"PeriodicalIF":2.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769173","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 : 2025-04-01DOI: 10.1016/j.physleta.2025.130506
Zhujie Chu , Fengyu Zhou , Teng Sun , Xuzhen Zhu
In daily life, message and behavior dissemination is common. Threshold models show that individuals are more likely to adopt a behavior if the proportion of peers who have adopted it exceeds a certain threshold. People's willingness to adopt behaviors varies and is influenced by their communication channels. High network heterogeneity makes behavior spread more difficult, unlike infectious disease dynamics. Research shows that factors like initial adopter proportion, clustering coefficient, community structure, and temporal networks significantly affect behavior propagation. However, there's a gap in studying dual propagation pathways, such as through credible and skeptical channels. This paper explores the impact of skepticism threshold in skeptical pathways on final adoption rates in two-layer networks where behaviors spread via both credible and skeptical channels. Code is available at https://github.com/chumie222/Propagation-dynamics-in-complex-networks.
{"title":"The power of easy belief: How behaviors spread rapidly in two-layer networks","authors":"Zhujie Chu , Fengyu Zhou , Teng Sun , Xuzhen Zhu","doi":"10.1016/j.physleta.2025.130506","DOIUrl":"10.1016/j.physleta.2025.130506","url":null,"abstract":"<div><div>In daily life, message and behavior dissemination is common. Threshold models show that individuals are more likely to adopt a behavior if the proportion of peers who have adopted it exceeds a certain threshold. People's willingness to adopt behaviors varies and is influenced by their communication channels. High network heterogeneity makes behavior spread more difficult, unlike infectious disease dynamics. Research shows that factors like initial adopter proportion, clustering coefficient, community structure, and temporal networks significantly affect behavior propagation. However, there's a gap in studying dual propagation pathways, such as through credible and skeptical channels. This paper explores the impact of skepticism threshold in skeptical pathways on final adoption rates in two-layer networks where behaviors spread via both credible and skeptical channels. Code is available at <span><span>https://github.com/chumie222/Propagation-dynamics-in-complex-networks</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"546 ","pages":"Article 130506"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776644","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 : 2025-04-01DOI: 10.1016/j.physleta.2025.130507
Amartya Chakraborty, Nandini Mukherjee
The modeling of online social network interactions is more efficiently achieved using hypergraphs, where hyperedges represent topics of user engagement. This work introduces a topic and opinion-infused hypergraph, where user opinion magnitude and polarity toward specific topics are incorporated into the incidence matrix. For a target topic, relevant hyperedges identify vulnerable targets, and a Topical Relevance Infused Incidence Matrix (TRIIV) is extracted to capture the participatory opinion of vulnerable users. Two novel seed selection criteria, based on participation and opinion severity with weighted usage, are proposed. Infection probability is set to 1 or determined randomly based on the seed's opinion similarity with vulnerable users. Experiments show that deterministic infection of a subset enhances influence spread efficiency while reducing computational requirements.
{"title":"Topic and opinion infused hypergraphs for influence maximization","authors":"Amartya Chakraborty, Nandini Mukherjee","doi":"10.1016/j.physleta.2025.130507","DOIUrl":"10.1016/j.physleta.2025.130507","url":null,"abstract":"<div><div>The modeling of online social network interactions is more efficiently achieved using hypergraphs, where hyperedges represent topics of user engagement. This work introduces a topic and opinion-infused hypergraph, where user opinion magnitude and polarity toward specific topics are incorporated into the incidence matrix. For a target topic, relevant hyperedges identify vulnerable targets, and a Topical Relevance Infused Incidence Matrix (TRIIV) is extracted to capture the participatory opinion of vulnerable users. Two novel seed selection criteria, based on participation and opinion severity with weighted usage, are proposed. Infection probability is set to 1 or determined randomly based on the seed's opinion similarity with vulnerable users. Experiments show that deterministic infection of a subset enhances influence spread efficiency while reducing computational requirements.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"545 ","pages":"Article 130507"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747092","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 : 2025-04-01DOI: 10.1016/j.physleta.2025.130504
Qiang Zhang, Yu Xue, Kun Zhang, Haojie Luo
We investigate the thermal transport properties of a one-dimensional long-range Fermi-Pasta-Ulam (β-FPU) model with the inclusion of a weak interface. The system comprises two nonlinear long-range FPU chains connected via a linear weak interface. The weak interface is modeled using linear harmonic interactions. The equations of motion were simulated using molecular dynamics, enabling the calculation of thermal transport quantities, including heat flux J, thermal conductivity κ, and the local temperature distribution Ti. Furthermore, an analysis of finite-size effects was conducted. Our analysis reveals distinct thermal transport behaviors governed by a critical value of δ, which marks a transition in the heat flux and thermal conductivity. This critical δ depends on the coupling strength of the interface kint; for instance, δ=5.0 is observed when kint=0.1. This threshold delineates two regimes of thermal conductivity: monotonic growth for δ<δc and stabilization for δ>δc. Notably, for a system without an interface, thermal conductivity peaks at δ=2.0. On the other hand, we also observed a scaling behavior of the heat flux J∝kint, which is consistent with previous studies. To elucidate the underlying mechanisms of this behavior, we calculate the mean standard deviation σ of the local heat fluxes Ji, which provides a consistent explanation for the observed critical phenomena in both heat flux and thermal conductivity.
{"title":"Thermal transport in the long-range interactions Fermi-Pasta-Ulam model with weak interface","authors":"Qiang Zhang, Yu Xue, Kun Zhang, Haojie Luo","doi":"10.1016/j.physleta.2025.130504","DOIUrl":"10.1016/j.physleta.2025.130504","url":null,"abstract":"<div><div>We investigate the thermal transport properties of a one-dimensional long-range Fermi-Pasta-Ulam (β-FPU) model with the inclusion of a weak interface. The system comprises two nonlinear long-range FPU chains connected via a linear weak interface. The weak interface is modeled using linear harmonic interactions. The equations of motion were simulated using molecular dynamics, enabling the calculation of thermal transport quantities, including heat flux J, thermal conductivity κ, and the local temperature distribution T<sub>i</sub>. Furthermore, an analysis of finite-size effects was conducted. Our analysis reveals distinct thermal transport behaviors governed by a critical value of δ, which marks a transition in the heat flux and thermal conductivity. This critical δ depends on the coupling strength of the interface k<sub>int</sub>; for instance, δ=5.0 is observed when k<sub>int</sub>=0.1. This threshold delineates two regimes of thermal conductivity: monotonic growth for δ<δ<sub>c</sub> and stabilization for δ>δ<sub>c</sub>. Notably, for a system without an interface, thermal conductivity peaks at δ=2.0. On the other hand, we also observed a scaling behavior of the heat flux J∝k<sub>int</sub>, which is consistent with previous studies. To elucidate the underlying mechanisms of this behavior, we calculate the mean standard deviation σ of the local heat fluxes J<sub>i</sub>, which provides a consistent explanation for the observed critical phenomena in both heat flux and thermal conductivity.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"545 ","pages":"Article 130504"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747070","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 : 2025-04-01DOI: 10.1016/j.physleta.2025.130509
Samaya El Samad , Maher Jneid , Hanaa El Badawi Yassine , Salem Marhaba
The optical properties of metal nanostructures especially the localized surface plasmon resonances (LSPRs) have been intensively investigated in recent times. In this paper, we explore the resonance behavior for various arrangement of silver (Ag) nanostructures characterized by far field optical spectroscopy in the visible and near-infrared regions of the electromagnetic waves. Depending on the light polarization and nanostructure morphology, extinction cross section spectrum displays multipolar resonance modes. Furthermore, plasmonic coupling within the nanostructure results in a strong increase in the optical response magnitude, accompanied by a spectral position redshift. Using transmission electron microscopy (TEM) images, the nanostructures morphologies are redesigned by Comsol Multiphysics. The optical response of the nanostructures recorded from measurements and modeling based on Finite Element Method (FEM) provides a very good agreement. Knowing the optical response of these nanostructures and exploiting the generation of plasmonic field enhancement, opens applications on several domains such as sensors and imaging.
{"title":"Light polarization effect on the extinction spectrum of silver nanostructures","authors":"Samaya El Samad , Maher Jneid , Hanaa El Badawi Yassine , Salem Marhaba","doi":"10.1016/j.physleta.2025.130509","DOIUrl":"10.1016/j.physleta.2025.130509","url":null,"abstract":"<div><div>The optical properties of metal nanostructures especially the localized surface plasmon resonances (LSPRs) have been intensively investigated in recent times. In this paper, we explore the resonance behavior for various arrangement of silver (Ag) nanostructures characterized by far field optical spectroscopy in the visible and near-infrared regions of the electromagnetic waves. Depending on the light polarization and nanostructure morphology, extinction cross section spectrum displays multipolar resonance modes. Furthermore, plasmonic coupling within the nanostructure results in a strong increase in the optical response magnitude, accompanied by a spectral position redshift. Using transmission electron microscopy (TEM) images, the nanostructures morphologies are redesigned by Comsol Multiphysics. The optical response of the nanostructures recorded from measurements and modeling based on Finite Element Method (FEM) provides a very good agreement. Knowing the optical response of these nanostructures and exploiting the generation of plasmonic field enhancement, opens applications on several domains such as sensors and imaging.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"546 ","pages":"Article 130509"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783899","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 : 2025-03-30DOI: 10.1016/j.physleta.2025.130505
Jingmei Tan , Pengcheng Ma , Boyang Zhang , Keke Yuan , Hongwu Yang , Qiujiao Du
Seismic fortification of reservoirs is crucial for ensuring the safety of both the reservoir structures and surrounding communities. Metamaterials offer an innovative approach to earthquake prevention and disaster mitigation by controlling or attenuating seismic waves in mountainous regions. In this paper, we present a local resonance-type gradient seismic metamaterial (LRGSM) to attenuate body waves and surface waves across a broad frequency range. The propagation performance of seismic waves through the finite LRGSM system is investigated by using the finite element method. The transmission spectrum and displacement fields of the LRGSM under compression and shear waves incidence are analyzed to validate its broadband attenuation capabilities from 9.03 Hz to 15.00 Hz. Notably, this design is extended to the half-space model, demonstrating the same attenuation effect of Rayleigh waves as observed for body waves. The findings confirm that the LRGSM effectively generates a same attenuation zone, thereby effectively protecting reservoirs.
{"title":"A broadband seismic metamaterial with gradient resonators for earthquake-proofing reservoirs","authors":"Jingmei Tan , Pengcheng Ma , Boyang Zhang , Keke Yuan , Hongwu Yang , Qiujiao Du","doi":"10.1016/j.physleta.2025.130505","DOIUrl":"10.1016/j.physleta.2025.130505","url":null,"abstract":"<div><div>Seismic fortification of reservoirs is crucial for ensuring the safety of both the reservoir structures and surrounding communities. Metamaterials offer an innovative approach to earthquake prevention and disaster mitigation by controlling or attenuating seismic waves in mountainous regions. In this paper, we present a local resonance-type gradient seismic metamaterial (LRGSM) to attenuate body waves and surface waves across a broad frequency range. The propagation performance of seismic waves through the finite LRGSM system is investigated by using the finite element method. The transmission spectrum and displacement fields of the LRGSM under compression and shear waves incidence are analyzed to validate its broadband attenuation capabilities from 9.03 Hz to 15.00 Hz. Notably, this design is extended to the half-space model, demonstrating the same attenuation effect of Rayleigh waves as observed for body waves. The findings confirm that the LRGSM effectively generates a same attenuation zone, thereby effectively protecting reservoirs.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"545 ","pages":"Article 130505"},"PeriodicalIF":2.3,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777127","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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