The present work investigates the dispersion characteristics both for TM and TE modes in a grounded dielectric slab coated with double positive (DPS) material and double negative (DNG) material. The outermost dielectric layer is assumed to be free space. By employing proper boundary conditions at interfaces, dispersion relations for the aforementioned structure for both TM and TE modes are derived. Additionally, surface waves at the interface of free space and DPS/DNG coating are investigated. Existence of mode degeneracy for DNG/DPS combination has been discussed based on dispersion analysis.
{"title":"Dispersion analysis of grounded dielectric slab coated with double positive (DPS) / double negative (DNG) material","authors":"Somen Bhattacharjee , Amrit Anand , Rounak Agrawal , Sumantra Chaudhuri","doi":"10.1016/j.physleta.2024.130126","DOIUrl":"10.1016/j.physleta.2024.130126","url":null,"abstract":"<div><div>The present work investigates the dispersion characteristics both for TM and TE modes in a grounded dielectric slab coated with double positive (DPS) material and double negative (DNG) material. The outermost dielectric layer is assumed to be free space. By employing proper boundary conditions at interfaces, dispersion relations for the aforementioned structure for both TM and TE modes are derived. Additionally, surface waves at the interface of free space and DPS/DNG coating are investigated. Existence of mode degeneracy for DNG/DPS combination has been discussed based on dispersion analysis.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130126"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152979","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130124
Shi-fan Qi , Jun Jing
Quantum battery concerns about population redistribution and energy dispatch over controllable quantum systems. Under unitary transformation, ergotropy rather than energy plays an essential role in describing the accumulated useful work. Thus, the charging and recharging of quantum batteries are distinct from the electric-energy input and reuse of classical batteries. In this work, we focus on recharging a three-level quantum battery that has been exhausted under self-discharging and work extraction. We find that the quantum battery cannot be fully refreshed with the maximum ergotropy only by the driving pulses for unitary charging. For an efficient refreshment of the quantum battery, we propose a fast and stable recharging protocol based on postselection and shortcut to adiabaticity. More than accelerating the adiabatic passage for charging, the protocol can eliminate unextractable energy and is robust against driving errors and environmental decoherence. Our protocol is energy-saving and experimental-feasible, even in systems with forbidden transition.
{"title":"Quantum recharging by shortcut to adiabaticity","authors":"Shi-fan Qi , Jun Jing","doi":"10.1016/j.physleta.2024.130124","DOIUrl":"10.1016/j.physleta.2024.130124","url":null,"abstract":"<div><div>Quantum battery concerns about population redistribution and energy dispatch over controllable quantum systems. Under unitary transformation, ergotropy rather than energy plays an essential role in describing the accumulated useful work. Thus, the charging and recharging of quantum batteries are distinct from the electric-energy input and reuse of classical batteries. In this work, we focus on recharging a three-level quantum battery that has been exhausted under self-discharging and work extraction. We find that the quantum battery cannot be fully refreshed with the maximum ergotropy only by the driving pulses for unitary charging. For an efficient refreshment of the quantum battery, we propose a fast and stable recharging protocol based on postselection and shortcut to adiabaticity. More than accelerating the adiabatic passage for charging, the protocol can eliminate unextractable energy and is robust against driving errors and environmental decoherence. Our protocol is energy-saving and experimental-feasible, even in systems with forbidden transition.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130124"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151862","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}
Quantum synchronization among many spins is an intriguing domain of research. In this paper, we explore the quantum synchronization of two finite chains of spin-1/2 particles, via a nonlinear interaction mediated by a central intermediary spin chain. We introduce a novel approach using the Holstein-Primakoff transformation to treat the spin chains as pseudo-bosonic systems and thereby applying the synchronization criteria for harmonic oscillators. Our theoretical framework and numerical simulations reveal that under optimal conditions, the spin chains can achieve both classical and perfect quantum synchronization. We show that quantum synchronization is robust against variations in the number of spins and inter-spin coupling, though may be affected by thermal noise. This work advances the understanding of synchronization in multi-spin systems and introduces a generalized synchronization measure for both bosons and fermions.
{"title":"Quantum synchronization between two spin chains using pseudo-bosonic equivalence","authors":"Jatin Ghildiyal, Manju, Shubhrangshu Dasgupta, Asoka Biswas","doi":"10.1016/j.physleta.2024.130123","DOIUrl":"10.1016/j.physleta.2024.130123","url":null,"abstract":"<div><div>Quantum synchronization among many spins is an intriguing domain of research. In this paper, we explore the quantum synchronization of two finite chains of spin-1/2 particles, via a nonlinear interaction mediated by a central intermediary spin chain. We introduce a novel approach using the Holstein-Primakoff transformation to treat the spin chains as pseudo-bosonic systems and thereby applying the synchronization criteria for harmonic oscillators. Our theoretical framework and numerical simulations reveal that under optimal conditions, the spin chains can achieve both classical and perfect quantum synchronization. We show that quantum synchronization is robust against variations in the number of spins and inter-spin coupling, though may be affected by thermal noise. This work advances the understanding of synchronization in multi-spin systems and introduces a generalized synchronization measure for both bosons and fermions.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130123"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152807","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130131
Ziqi Yang, Li Xu, Kaijun Zhang, Wei Zhu
Turbulent boundary layer trailing-edge noise can be effectively reduced by installing serrations on wind turbine blades. This study designs iron-shaped trailing-edge serrations with Bessel curves and investigates the noise reduction mechanism of three iron-shaped serrations (IS-0.25, IS-0.5, IS-0.75) with different curvatures installed on the NACA0018 airfoil using numerical methods. Large Eddy Simulation and Ffowcs-Williams and Hawkings acoustic analogy integral formula are employed to calculate the flow field and the far-field noise under Reynolds number . The results indicate that iron-shaped serrations achieve better aerodynamic performance and noise reduction compared to airfoils without serrations (Baseline) and with triangular serrations. IS-0.75 has the highest lift and lift-to-drag ratio at attack angles of to . For attack angle , the fluid near the trailing edge of IS-0.75 adheres well to the airfoil surface, delaying flow separation and suppressing vortex shedding, with maximum low-to-moderate frequency noise reduction of 16.2 dB compared to Baseline.
{"title":"Numerical study on benefits of curved serrations upon suppressing turbulent boundary layer trailing-edge noise","authors":"Ziqi Yang, Li Xu, Kaijun Zhang, Wei Zhu","doi":"10.1016/j.physleta.2024.130131","DOIUrl":"10.1016/j.physleta.2024.130131","url":null,"abstract":"<div><div>Turbulent boundary layer trailing-edge noise can be effectively reduced by installing serrations on wind turbine blades. This study designs iron-shaped trailing-edge serrations with Bessel curves and investigates the noise reduction mechanism of three iron-shaped serrations (IS-0.25, IS-0.5, IS-0.75) with different curvatures installed on the NACA0018 airfoil using numerical methods. Large Eddy Simulation and Ffowcs-Williams and Hawkings acoustic analogy integral formula are employed to calculate the flow field and the far-field noise under Reynolds number <span><math><msub><mrow><mi>R</mi></mrow><mrow><mi>e</mi></mrow></msub><mo>=</mo><mn>1.6</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mn>5</mn></mrow></msup></math></span>. The results indicate that iron-shaped serrations achieve better aerodynamic performance and noise reduction compared to airfoils without serrations (Baseline) and with triangular serrations. IS-0.75 has the highest lift and lift-to-drag ratio at attack angles of <span><math><msup><mrow><mn>0</mn></mrow><mrow><mo>∘</mo></mrow></msup></math></span> to <span><math><msup><mrow><mn>8</mn></mrow><mrow><mo>∘</mo></mrow></msup></math></span>. For attack angle <span><math><mi>α</mi><mo>=</mo><msup><mrow><mn>6</mn></mrow><mrow><mo>∘</mo></mrow></msup></math></span>, the fluid near the trailing edge of IS-0.75 adheres well to the airfoil surface, delaying flow separation and suppressing vortex shedding, with maximum low-to-moderate frequency noise reduction of 16.2 dB compared to Baseline.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130131"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152809","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130105
Yanxin Lu , Zhanpeng Huang , Yihang Chen
Non-Hermitian effect in topological photonic lattices reveals some unexpected phenomenons. Here, we establish a model of non-Hermitian extended Su-Schrieffer-Heeger (SSH) lattices with complex long-range hoppings, which is implemented on a curved-arranged waveguide array platform. Upon injection of the field into the waveguide array, asymmetric pumping is observed between two edge waveguides. Specifically, our results demonstrate that the non-Hermitian terms play a major role in the topological protection of asymmetric propagation in photonic lattices because of broken inversion symmetry theoretically. Our finding could provide a new platform for quantum information processing and exploring topological effects in the non-Hermitian system.
{"title":"Asymmetric pumping of topological non-Hermitian photonic lattice without inversion symmetry","authors":"Yanxin Lu , Zhanpeng Huang , Yihang Chen","doi":"10.1016/j.physleta.2024.130105","DOIUrl":"10.1016/j.physleta.2024.130105","url":null,"abstract":"<div><div>Non-Hermitian effect in topological photonic lattices reveals some unexpected phenomenons. Here, we establish a model of non-Hermitian extended Su-Schrieffer-Heeger (SSH) lattices with complex long-range hoppings, which is implemented on a curved-arranged waveguide array platform. Upon injection of the field into the waveguide array, asymmetric pumping is observed between two edge waveguides. Specifically, our results demonstrate that the non-Hermitian terms play a major role in the topological protection of asymmetric propagation in photonic lattices because of broken inversion symmetry theoretically. Our finding could provide a new platform for quantum information processing and exploring topological effects in the non-Hermitian system.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130105"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152975","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130107
Yassine Chargui , Anis Dhahbi
We consider the Duffin–Kemmer–Petiau (DKP) equation for a spin-1 particle moving in the plane under the action of a perpendicular Homogeneous Magnetic Field (HMF) using a fully algebraic method. Interestingly, we show that this quantum relativistic model can be exactly mapped onto the Two-Photon Jaynes-Cummings Model (TPJCM) so widely used in quantum optics to describe two-photon processes during the interaction of a two-level atom with a single-mode radiation field. The Hamiltonian of the equivalent TPJCM we obtain is pseudo-Hermitian, reinforcing the idea that pseudo-Hermitian models are physically relevant. Moreover, using the spectral method, we were able to work out exact closed forms for the associated metric operator and Hermitian Hamiltonian. It turns out that the latter is diagonal and therefore we identified the transformation we applied to calculate it from the TPJCM Hamiltonian as a Foldy-Wouthuysen transformation.
{"title":"The DKP equation for a spin-1 boson in a magnetic field and the two-photon Jaynes–Cummings model","authors":"Yassine Chargui , Anis Dhahbi","doi":"10.1016/j.physleta.2024.130107","DOIUrl":"10.1016/j.physleta.2024.130107","url":null,"abstract":"<div><div>We consider the Duffin–Kemmer–Petiau (DKP) equation for a spin-1 particle moving in the plane under the action of a perpendicular Homogeneous Magnetic Field (HMF) using a fully algebraic method. Interestingly, we show that this quantum relativistic model can be exactly mapped onto the Two-Photon Jaynes-Cummings Model (TPJCM) so widely used in quantum optics to describe two-photon processes during the interaction of a two-level atom with a single-mode radiation field. The Hamiltonian of the equivalent TPJCM we obtain is pseudo-Hermitian, reinforcing the idea that pseudo-Hermitian models are physically relevant. Moreover, using the spectral method, we were able to work out exact closed forms for the associated metric operator and Hermitian Hamiltonian. It turns out that the latter is diagonal and therefore we identified the transformation we applied to calculate it from the TPJCM Hamiltonian as a Foldy-Wouthuysen transformation.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130107"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151861","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130158
Kunzhan Cai , Lei Chen , Xuening Wang , Yanlin Zhu , Li Zhang , Yongyao Li
Bound states in the continuum (BICs) have demonstrated significant potential for optical trapping due to their high Q-factor resonances and strong field enhancement. However, BICs must be extended in one or more directions, substantially increasing the device footprint, limiting their practical applications. While recent advancements have demonstrated azimuthal and radial quasi-BICs supported by aperiodic metasurfaces, their potential for trapping applications remains unexplored. In this work, we build upon these foundational models by introducing field enhancements and conducting a thorough investigation of their trapping performance. We propose an aperiodic dielectric nanotweezer platform that leverages quasi-BICs within an ultracompact footprint of approximately 7 μm², enabling efficient optical trapping of nanoparticles with low laser power and minimal heating effects. Our design features an aperiodic dielectric sectorial nanostructure with a central nanopillar, supporting two distinct quasi-BICs: azimuthal BICs, achieved by adjusting the angles between sector rods and excited by azimuthally polarized light, and radial BICs, realized by shortening one sector rod and excited with radially polarized light. Operating in the near-infrared spectrum, this system is especially suitable for manipulating biological specimens. This platform provides a compact on-chip optical tweezer device that outperforms existing nanotweezers, offering exceptional field enhancement, strong trapping stability, and broad adaptability, positioning it as a versatile and highly effective tool for advancing optical trapping technologies.
{"title":"Radial and azimuthal quasi-bound states in the continuum for optical trapping","authors":"Kunzhan Cai , Lei Chen , Xuening Wang , Yanlin Zhu , Li Zhang , Yongyao Li","doi":"10.1016/j.physleta.2024.130158","DOIUrl":"10.1016/j.physleta.2024.130158","url":null,"abstract":"<div><div>Bound states in the continuum (BICs) have demonstrated significant potential for optical trapping due to their high Q-factor resonances and strong field enhancement. However, BICs must be extended in one or more directions, substantially increasing the device footprint, limiting their practical applications. While recent advancements have demonstrated azimuthal and radial quasi-BICs supported by aperiodic metasurfaces, their potential for trapping applications remains unexplored. In this work, we build upon these foundational models by introducing field enhancements and conducting a thorough investigation of their trapping performance. We propose an aperiodic dielectric nanotweezer platform that leverages quasi-BICs within an ultracompact footprint of approximately 7 μm², enabling efficient optical trapping of nanoparticles with low laser power and minimal heating effects. Our design features an aperiodic dielectric sectorial nanostructure with a central nanopillar, supporting two distinct quasi-BICs: azimuthal BICs, achieved by adjusting the angles between sector rods and excited by azimuthally polarized light, and radial BICs, realized by shortening one sector rod and excited with radially polarized light. Operating in the near-infrared spectrum, this system is especially suitable for manipulating biological specimens. This platform provides a compact on-chip optical tweezer device that outperforms existing nanotweezers, offering exceptional field enhancement, strong trapping stability, and broad adaptability, positioning it as a versatile and highly effective tool for advancing optical trapping technologies.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130158"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152980","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130133
Fuqian Yang
In this work, we study field-induced stress in cylindrical and spherical core-shell structures with linear elasticity. The solid conducting core, which carries a net electric charge, experiences hydrostatic tensile stress for spherical structure and tensile stress in radial, axial and azimuth directions for cylindrical structure. The conducting shell is subjected to tensile stress in the radial direction and compressive stress in the azimuth direction for both the spherical and cylindrical structures. The radial tensile stress can cause the formation and propagation of cracks. For a section of the shell with the planar faces parallel to symmetrical axis, the field-induced force on the section is repulsive when the distance between the symmetrical axis and the section of the shell is larger than the critical distance.
{"title":"Elastic deformation of symmetrical conducting materials in electric field","authors":"Fuqian Yang","doi":"10.1016/j.physleta.2024.130133","DOIUrl":"10.1016/j.physleta.2024.130133","url":null,"abstract":"<div><div>In this work, we study field-induced stress in cylindrical and spherical core-shell structures with linear elasticity. The solid conducting core, which carries a net electric charge, experiences hydrostatic tensile stress for spherical structure and tensile stress in radial, axial and azimuth directions for cylindrical structure. The conducting shell is subjected to tensile stress in the radial direction and compressive stress in the azimuth direction for both the spherical and cylindrical structures. The radial tensile stress can cause the formation and propagation of cracks. For a section of the shell with the planar faces parallel to symmetrical axis, the field-induced force on the section is repulsive when the distance between the symmetrical axis and the section of the shell is larger than the critical distance.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130133"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152806","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130129
Xiangyu Chen, Qiang Lei
In this paper, we introduce the framework for quantifying the imaginarity of quantum channels. Besides, an alternative framework is given together to simplify the process of verifying the condition. We present three imaginarity measures of quantum channels based on the robustness, the trace norm, and the entropy, respectively. Some properties are also given.
{"title":"Imaginarity of quantum channels: Refinement and alternative","authors":"Xiangyu Chen, Qiang Lei","doi":"10.1016/j.physleta.2024.130129","DOIUrl":"10.1016/j.physleta.2024.130129","url":null,"abstract":"<div><div>In this paper, we introduce the framework for quantifying the imaginarity of quantum channels. Besides, an alternative framework is given together to simplify the process of verifying the condition. We present three imaginarity measures of quantum channels based on the robustness, the trace norm, and the entropy, respectively. Some properties are also given.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130129"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152997","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 : 2025-01-15DOI: 10.1016/j.physleta.2024.130078
Xin Wang
The stochastic exact solutions and qualitative analysis of the Hirota-Maccari system driven by a multiplicative white noise is studied in details. This model describes the phenomena of different propagations of waves in the different spatial scales. Bifurcation theory is used to give qualitative information on the existence of some special solutions. Furthermore, the classification of stochastic exact traveling wave solutions is given, and topological stability of solutions is analyzed under the change of parameters. In particular, for the model, we consider the averaging values of solutions under Brown motion and show a delay factor of amplitude which means that the white noise not only affects the phase factor, but also affects the amplitude of the solutions. This result recovers a new aspect of dynamical behavior of the stochastic Hirota-Maccari model in large time under the action of noise.
{"title":"Stochastic exact solutions and averaging dynamical behaviors of the Hirota-Maccari system driven by multiplicative white noise","authors":"Xin Wang","doi":"10.1016/j.physleta.2024.130078","DOIUrl":"10.1016/j.physleta.2024.130078","url":null,"abstract":"<div><div>The stochastic exact solutions and qualitative analysis of the Hirota-Maccari system driven by a multiplicative white noise is studied in details. This model describes the phenomena of different propagations of waves in the different spatial scales. Bifurcation theory is used to give qualitative information on the existence of some special solutions. Furthermore, the classification of stochastic exact traveling wave solutions is given, and topological stability of solutions is analyzed under the change of parameters. In particular, for the model, we consider the averaging values of solutions under Brown motion and show a delay factor of amplitude which means that the white noise not only affects the phase factor, but also affects the amplitude of the solutions. This result recovers a new aspect of dynamical behavior of the stochastic Hirota-Maccari model in large time under the action of noise.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"530 ","pages":"Article 130078"},"PeriodicalIF":2.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153000","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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