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An estimation magnetic field influence on hemoglobin and oxygen concertation-dependent diffusion in red blood cells: A theoretical and numerical study 估计磁场对红细胞中血红蛋白和氧浓度依赖扩散的影响:理论和数值研究
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-16 DOI: 10.1016/j.cjph.2026.01.014
Relja Dragnić , Ivona Kovačević , Milan S. Kovačević , Vladimir M. Marković
The transport of oxygen within red blood cells (RBCs) is governed by the interplay between molecular diffusion, membrane permeability, and reversible binding to hemoglobin. In this work, authors develop a theoretical framework for modeling oxygen diffusion and hemoglobin reactions, progressively incorporating three cases of increasing complexity: (i) diffusion with constant coefficients, (ii) diffusion with concentration-dependent coefficients, and (iii) diffusion under the influence of static magnetic fields. In the first case, oxygen transport is described by Fickian diffusion coupled with the reversible binding and unbinding of oxygen to hemoglobin, assuming a constant diffusion coefficient. In the second case, experimentally validated concentration-dependent diffusion coefficients are introduced, capturing the effects of macromolecular crowding within the RBC interior. In the third case, the potential influence of static magnetic fields is considered via an effective diffusion coefficient, Deff(B), distinguishing between diamagnetic oxyhemoglobin and paramagnetic deoxyhemoglobin; however, under fields below ∼10 T, these effects are negligible. The resulting system of coupled partial differential equations is solved using finite-difference discretization schemes, allowing numerical analysis of concentration fields in space and time. Initial and boundary conditions reflect physiological venous to artery transitions and realistic membrane permeabilities. Results highlight the predominant role of concentration-dependent diffusion in modulating oxygen and hemoglobin distributions, while magnetic contributions are only under ultra-high fields. This framework establishes a generalizable basis for further quantitative studies on hemoglobin-mediated oxygen transport and may serve as a foundation for integrating more complex biophysical interactions relevant to red cell physiology.
氧在红细胞内的运输是由分子扩散、膜通透性和与血红蛋白的可逆结合之间的相互作用控制的。在这项工作中,作者开发了一个氧气扩散和血红蛋白反应建模的理论框架,逐步纳入三种日益复杂的情况:(i)常系数扩散,(ii)浓度相关系数扩散,(iii)静态磁场影响下的扩散。在第一种情况下,氧的运输被描述为菲克氏扩散,加上氧与血红蛋白的可逆结合和解结合,假设扩散系数恒定。在第二种情况下,引入了实验验证的浓度相关扩散系数,捕获了红细胞内部大分子拥挤的影响。在第三种情况下,通过有效扩散系数Deff(B)来考虑静磁场的潜在影响,区分抗磁性脱氧血红蛋白和顺磁性脱氧血红蛋白;然而,在低于~ 10 T的电场下,这些影响可以忽略不计。所得到的耦合偏微分方程组采用有限差分离散格式进行求解,从而可以对空间和时间上的浓度场进行数值分析。初始和边界条件反映了生理的静脉到动脉的过渡和现实的膜透性。结果强调了浓度依赖的扩散在调节氧和血红蛋白分布中的主导作用,而磁场仅在超高场下起作用。该框架为进一步定量研究血红蛋白介导的氧运输奠定了可推广的基础,并可作为整合与红细胞生理学相关的更复杂的生物物理相互作用的基础。
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引用次数: 0
Shock wave dynamics in a non-ideal dusty rotating gas influenced by magnetic field and radiation heat flux 非理想含尘旋转气体中受磁场和辐射热流影响的激波动力学
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.cjph.2026.01.012
Deepika Singh, Anshul Phogat
In this paper, the authors investigate the propagation of cylindrical shock wave in a rotational axisymmetric non-ideal dusty gas under the effect of magnetic field and radiation heat flux. The method of Lie group of transformations is used to determine the whole range of similarity solutions for the considered problem in the medium of constant density. Different possible cases of potential solutions with power-law and exponential-law shock paths have been determined considering different cases for the arbitrary constants appearing in the expressions of generators of the Lie group of transformations. The numerical solutions obtained in the case of a power-law shock path have been discussed in detail. The shock strength and flow variables behind the shock front are analyzed with respect to the variation in physical parameters like the non-ideal parameter, adiabatic exponent, mass fraction of the solid particles, the ratio of the density of solid particles to the initial density of the gas and Alfvén-Mach number. It is found that the shock strength reduces as the non-ideal parameter, the Alfvén-Mach number, and the adiabatic exponent increase. In contrast, it increases as the mass fraction of the solid particles and the ratio of the density of solid particles to the initial density of the gas increase.
本文研究了旋转轴对称非理想含尘气体中圆柱激波在磁场和辐射热流的作用下的传播。利用李群变换的方法确定了所考虑问题在等密度介质中的全范围相似解。考虑变换李群发生器表达式中出现任意常数的不同情况,确定了幂律激波路径和指数律激波路径势解的不同可能情况。详细讨论了幂律激波路径下的数值解。从非理想参数、绝热指数、固体颗粒质量分数、固体颗粒密度与气体初始密度之比、alfv -马赫数等物理参数的变化,分析了激波强度和激波前缘后的流动变量。研究发现,激波强度随非理想参数的增大而减小,随着阿尔夫曼-马赫数的增大而减小,随着绝热指数的增大而减小。相反,它随着固体颗粒的质量分数和固体颗粒密度与气体初始密度之比的增加而增加。
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引用次数: 0
Control of birhythmicity, and stochastic bifurcation in a self-sustaining system coupled to magnetic flux and driven by noise 噪声驱动下磁通耦合自持系统的出生节律控制与随机分岔
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2025-12-31 DOI: 10.1016/j.cjph.2025.12.008
C. Dang-Ra , A.C. Chamgoué , A. Troisi , G. Filatrella , R. Yamapi
The sensitivity of self-sustaining biological systems to external influences and the reaction environment has promted analytical and numerical analysis of the bifurcation of the birhythmic parameters of the self-sustaining system. Considering the influence of magnetic flux, analytically, the self-feedback method is applied to control the birhythmic zone of the solution map. As the intensity of the control coefficient increases, the birhythmic zone tends to disappear. The non-monotonic behavior and chaotic state observed on the stochastic bifurcation via the Fokker-Planck-Kolmogorov equation and the Lyapunov exponent are influenced by the magnetic flux. Gaussian white noise introduces an additional phenomenon of unpredictability into the system, causing it to enter various dynamic regimes, its combination with magnetic flux accentuates the control of the system’s parameters.
自维持生物系统对外部影响和反应环境的敏感性促使了对自维持系统出生节律参数分岔的解析和数值分析。考虑到磁通量的影响,分析地采用自反馈方法控制解图的出生节律区。随着控制系数强度的增大,出生节律带趋于消失。通过Fokker-Planck-Kolmogorov方程和Lyapunov指数观察到的随机分岔的非单调行为和混沌状态受磁通量的影响。高斯白噪声在系统中引入了一种额外的不可预测性现象,使其进入各种动态状态,它与磁通量的结合加强了对系统参数的控制。
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引用次数: 0
Electron acoustic solitons in nanoparticle doped semiconductor quantum plasmas 纳米粒子掺杂半导体量子等离子体中的电子声孤子
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-07 DOI: 10.1016/j.cjph.2026.01.005
Abhishek Yadav, Punit Kumar
The study of electron acoustic waves (EAWs) and their associated solitary structures in semiconductor quantum plasma doped with nanoparticle clusters has been carried out. The system consists of cold and hot electrons, holes, and stationary ions. The theory has been built using the quantum hydrodynamic (QHD) model. The dispersion relation for EAWs has been set up. To explore nonlinear behaviour, the perturbation technique has been applied, leading to the Korteweg de Vries (KdV) equation. The analysis demonstrates that quantum effects stabilize wave propagation at higher frequencies, while the presence of nanoparticles strongly influence wave dispersion at higher frequencies. Nonlinear analysis shows that solitons in quantum plasma attain higher amplitudes and broader structures due to quantum effects and with the inclusion of nanoparticles.
本文研究了掺杂纳米粒子团簇的半导体量子等离子体中电子声波及其相关的孤立结构。该系统由冷电子、热电子、空穴和固定离子组成。该理论是使用量子流体力学(QHD)模型建立的。建立了ews的色散关系。为了探索非线性行为,应用了微扰技术,得到了Korteweg de Vries (KdV)方程。分析表明,量子效应稳定了高频波的传播,而纳米粒子的存在强烈地影响了高频波的色散。非线性分析表明,由于量子效应和纳米粒子的加入,量子等离子体中的孤子具有更高的振幅和更宽的结构。
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引用次数: 0
Plasmon-enhanced photoluminescence and SERS in Ag- and Au-based nanohole arrays with Ag nanoparticle decoration 银纳米粒子修饰银基和金基纳米孔阵列的等离子体增强光致发光和SERS
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-02 DOI: 10.1016/j.cjph.2026.01.001
Sy-Hann Chen , Yi-Ching Wang , Xiang-Ren He , Hsing-Chih Liang , Hai-Pang Chiang
We present a comparative investigation of plasmon-enhanced photoluminescence (PL) and surface-enhanced Raman scattering (SERS) in gold and silver nanohole arrays (AuNA and AgNA) integrated within a metal–insulator–metal (MIM) configuration and further decorated with silver nanoparticles (AgNPs). The MIM architecture, composed of an Ag buffer layer, a SiO2 spacer, and a top Au or Ag nanohole film, supports strong vertical coupling of plasmonic modes confined within the dielectric gap, enabling efficient field localization and exciton–plasmon interaction. The nanostructures were fabricated via colloidal lithography and validated by finite-element simulations. AgNA exhibited stronger near-field confinement, yielding the highest absolute PL enhancement (4.93 × over glass) and pronounced SERS response of rhodamine 6G (R6G). In contrast, AuNA showed weaker absolute signals but achieved a larger relative PL gain (1.96 vs. 1.59 for AgNA) after AgNP growth, attributed to hybridization-induced redshifts improving spectral overlap with the 4-(Dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) emission. Time-resolved PL measurements revealed shortened fluorophore lifetimes for both arrays, which were further reduced by AgNP decoration, confirming enhanced radiative decay through MIM-assisted plasmon–exciton coupling. These findings elucidate the complementary roles of material damping and MIM hybridization in tuning resonance behavior and provide design insights for plasmonic and optoelectronic applications.
我们提出了一个比较研究等离子体增强光致发光(PL)和表面增强拉曼散射(SERS)的金和银纳米孔阵列(AuNA和AgNA)集成在金属-绝缘体-金属(MIM)结构中,并进一步装饰银纳米粒子(AgNPs)。MIM结构由Ag缓冲层、SiO2间隔层和顶部Au或Ag纳米孔膜组成,支持被限制在介电间隙内的等离子体模式的强垂直耦合,实现高效的场定位和激子-等离子体相互作用。采用胶体光刻技术制备了纳米结构,并进行了有限元模拟验证。AgNA表现出更强的近场约束,产生最高的绝对PL增强(比玻璃高4.93倍)和明显的罗丹明6G (R6G)的SERS响应。相比之下,AuNA表现出较弱的绝对信号,但在AgNP生长后获得了较大的相对PL增益(1.96 vs. AgNA为1.59),这是由于杂交诱导的红移改善了与4-(二氰乙烯)-2-t-丁基-6-(1,1,7,7-四甲基朱酰基-9-烯基)- 4h -吡喃(DCJTB)发射的光谱重叠。时间分辨PL测量显示,两种阵列的荧光团寿命都缩短了,AgNP修饰进一步缩短了荧光团寿命,证实了mim辅助等离子体-激子耦合增强了辐射衰减。这些发现阐明了材料阻尼和MIM杂化在调谐共振行为中的互补作用,并为等离子体和光电子应用提供了设计见解。
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引用次数: 0
Neuronal dynamics and pain perception modeling based on the SMM-HR model 基于SMM-HR模型的神经元动力学和痛觉建模
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2025-10-13 DOI: 10.1016/j.cjph.2025.10.010
Yang Xu , Suo Gao , Xianying Xu , Santo Banerjee , Jun Mou , Yinghong Cao
As research into neuronal dynamics deepens, single-neuron models are insufficient to describe information transmission between neurons. Memristors with memory characteristics are needed to simulate synapses in order to reveal the transmission mechanisms of neurons. This paper proposes a novel second-order multistable memristor (SMM) and verifies the non-volatility of the SMM through power-off plots (POPs). First, based on the coupling of the SMM and Hindmarsh-Rose (HR) model, a model named SMM-HR is constructed to simulate the effects of synapses and electromagnetic radiation on neuronal firing. Subsequently, the rich dynamical phenomena of the model are demonstrated through numerical analysis. Additionally, based on the SMM-HR model, a stimulus-response-perception framework is proposed to evaluate pain intensity using neuronal firing frequency, and differences are analyzed under various emotional and cognitive states. Finally, the practical feasibility of the model is demonstrated by implementing the phase diagram on hardware based on a digital signal processor (DSP). The proposed pain perception framework provides a theoretical and experimental foundation for brain-inspired pain modeling, brain-inspired olfactory modeling, and nonlinear dynamic circuit design.
随着对神经元动力学研究的深入,单神经元模型不足以描述神经元之间的信息传递。为了揭示神经元的传递机制,需要具有记忆特性的忆阻器来模拟突触。提出了一种新型二阶多稳定记忆电阻器,并通过断电图验证了其非易失性。首先,在SMM模型与Hindmarsh-Rose (HR)模型耦合的基础上,构建SMM-HR模型,模拟突触和电磁辐射对神经元放电的影响。随后,通过数值分析证明了该模型丰富的动力学现象。此外,在SMM-HR模型的基础上,提出了一个刺激-反应-感知框架,利用神经元放电频率评估疼痛强度,并分析了不同情绪和认知状态下疼痛强度的差异。最后,通过在硬件上实现基于数字信号处理器(DSP)的相位图,验证了该模型的实际可行性。提出的疼痛感知框架为脑启发疼痛建模、脑启发嗅觉建模和非线性动态电路设计提供了理论和实验基础。
{"title":"Neuronal dynamics and pain perception modeling based on the SMM-HR model","authors":"Yang Xu ,&nbsp;Suo Gao ,&nbsp;Xianying Xu ,&nbsp;Santo Banerjee ,&nbsp;Jun Mou ,&nbsp;Yinghong Cao","doi":"10.1016/j.cjph.2025.10.010","DOIUrl":"10.1016/j.cjph.2025.10.010","url":null,"abstract":"<div><div>As research into neuronal dynamics deepens, single-neuron models are insufficient to describe information transmission between neurons. Memristors with memory characteristics are needed to simulate synapses in order to reveal the transmission mechanisms of neurons. This paper proposes a novel second-order multistable memristor (SMM) and verifies the non-volatility of the SMM through power-off plots (POPs). First, based on the coupling of the SMM and Hindmarsh-Rose (HR) model, a model named SMM-HR is constructed to simulate the effects of synapses and electromagnetic radiation on neuronal firing. Subsequently, the rich dynamical phenomena of the model are demonstrated through numerical analysis. Additionally, based on the SMM-HR model, a stimulus-response-perception framework is proposed to evaluate pain intensity using neuronal firing frequency, and differences are analyzed under various emotional and cognitive states. Finally, the practical feasibility of the model is demonstrated by implementing the phase diagram on hardware based on a digital signal processor (DSP). The proposed pain perception framework provides a theoretical and experimental foundation for brain-inspired pain modeling, brain-inspired olfactory modeling, and nonlinear dynamic circuit design.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 247-266"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of dust concentrations and kaniadakis entropy in the dynamics of dust-ion-acoustic waves in magnetized dusty plasmas 尘埃浓度和卡尼达基斯熵在磁化尘埃等离子体中尘埃离子声波动力学中的作用
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.cjph.2025.12.036
A. Atteya , M. Abd-Elzaher , Reem Altuijri , Kottakkaran Sooppy Nisar , Abdel-Haleem Abdel-Aty , P.K. Karmakar , Eman Mohammed El-Bayoumi
This study provides a thorough analysis of Dust-Ion-Acoustic Waves (DIAWs) in a four-component, magnetized collisionless dusty plasma system. By deriving the modified Zakharov-Kuznetsov (mZK) equation through the reductive perturbation method, we examined solitary wave characteristics. We identified the significant effects of dust grain densities and the Kaniadakis parameter on phase velocity, nonlinear and dispersive terms, and overall wave stability. This research highlights the critical role of dust concentrations and the Kaniadakis parameter in wave dynamics, contributing to our understanding of phenomena such as cometary tails and planetary rings. The integration of Kaniadakis entropy enhances our comprehension of non-Maxwellian distributions, paving the way for future studies on plasma dynamics and their implications in cosmic phenomena.
本研究对四组分磁化无碰撞尘埃等离子体系统中的尘埃离子声波(DIAWs)进行了深入分析。利用约化微扰法推导了修正的Zakharov-Kuznetsov (mZK)方程,研究了孤立波的特性。结果表明,尘粒密度和Kaniadakis参数对相速度、非线性和色散项以及总体波动稳定性有显著影响。这项研究强调了尘埃浓度和Kaniadakis参数在波动动力学中的关键作用,有助于我们理解彗星尾巴和行星环等现象。卡尼达基斯熵的整合增强了我们对非麦克斯韦分布的理解,为未来等离子体动力学及其在宇宙现象中的意义的研究铺平了道路。
{"title":"The role of dust concentrations and kaniadakis entropy in the dynamics of dust-ion-acoustic waves in magnetized dusty plasmas","authors":"A. Atteya ,&nbsp;M. Abd-Elzaher ,&nbsp;Reem Altuijri ,&nbsp;Kottakkaran Sooppy Nisar ,&nbsp;Abdel-Haleem Abdel-Aty ,&nbsp;P.K. Karmakar ,&nbsp;Eman Mohammed El-Bayoumi","doi":"10.1016/j.cjph.2025.12.036","DOIUrl":"10.1016/j.cjph.2025.12.036","url":null,"abstract":"<div><div>This study provides a thorough analysis of Dust-Ion-Acoustic Waves (DIAWs) in a four-component, magnetized collisionless dusty plasma system. By deriving the modified Zakharov-Kuznetsov (mZK) equation through the reductive perturbation method, we examined solitary wave characteristics. We identified the significant effects of dust grain densities and the Kaniadakis parameter on phase velocity, nonlinear and dispersive terms, and overall wave stability. This research highlights the critical role of dust concentrations and the Kaniadakis parameter in wave dynamics, contributing to our understanding of phenomena such as cometary tails and planetary rings. The integration of Kaniadakis entropy enhances our comprehension of non-Maxwellian distributions, paving the way for future studies on plasma dynamics and their implications in cosmic phenomena.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 103-112"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum key-recovery attacks on beyond-birthday-bound MACs 对超过生日限制的mac进行量子密钥恢复攻击
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-22 DOI: 10.1016/j.cjph.2026.01.016
Hong-Wei Sun , Rong-Xue Xu , Bao-Min Zhou , Dan-Dan Li , Ke-Jia Zhang
Beyond-Birthday-Bound (BBB) MACs are crucial cryptographic schemes that typically offer 2/3-bit security. In this paper, we study the security of BBB MACs in a quantum setting, where attackers can make quantum superposition queries and perform offline quantum computations. We first present quantum key-recovery attacks on several parallelizable BBB MACs, taking quantum time O˜(2n/2), with O(n) quantum online queries and O(n2) qubits. Next, we extend our attack to certain serial BBB constructions in quantum time O˜(2n), with O(n) quantum online queries and O(n2) qubits. Specifically, by constructing new hidden periodic functions corresponding to several BBB MACs, these attacks can recover secret keys using the offline Simon algorithm, leading to forgery attacks. Our attacks improve certain superposition attacks by reducing their data complexity from exponential to polynomial while maintaining the same time complexity. This implies that while BBB MACs achieve beyond-birthday-bound security classically, they cannot maintain the same level of security in quantum settings.
超越生日界限(BBB) mac是关键的加密方案,通常提供2/3位安全性。在本文中,我们研究了量子环境下BBB mac的安全性,攻击者可以进行量子叠加查询和离线量子计算。我们首先在几个可并行的BBB mac上提出量子密钥恢复攻击,量子时间为O ~ (2n/2),具有O(n)个量子在线查询和O(n2)个量子比特。接下来,我们将攻击扩展到量子时间O ~ (2n)的某些串行BBB结构,具有O(n)个量子在线查询和O(n2)个量子比特。具体来说,这些攻击通过构造与多个BBB mac对应的新的隐藏周期函数,利用离线Simon算法恢复密钥,从而实现伪造攻击。我们的攻击通过在保持相同时间复杂度的情况下将某些叠加攻击的数据复杂度从指数级降低到多项式级,从而改进了某些叠加攻击。这意味着,虽然BBB mac在传统上实现了超越生日限制的安全性,但它们无法在量子设置中保持相同的安全级别。
{"title":"Quantum key-recovery attacks on beyond-birthday-bound MACs","authors":"Hong-Wei Sun ,&nbsp;Rong-Xue Xu ,&nbsp;Bao-Min Zhou ,&nbsp;Dan-Dan Li ,&nbsp;Ke-Jia Zhang","doi":"10.1016/j.cjph.2026.01.016","DOIUrl":"10.1016/j.cjph.2026.01.016","url":null,"abstract":"<div><div>Beyond-Birthday-Bound (BBB) MACs are crucial cryptographic schemes that typically offer 2/3-bit security. In this paper, we study the security of BBB MACs in a quantum setting, where attackers can make quantum superposition queries and perform offline quantum computations. We first present quantum key-recovery attacks on several parallelizable BBB MACs, taking quantum time <span><math><mrow><mover><mi>O</mi><mo>˜</mo></mover><mrow><mo>(</mo><msup><mn>2</mn><mrow><mi>n</mi><mo>/</mo><mn>2</mn></mrow></msup><mo>)</mo></mrow></mrow></math></span>, with <em>O</em>(<em>n</em>) quantum online queries and <em>O</em>(<em>n</em><sup>2</sup>) qubits. Next, we extend our attack to certain serial BBB constructions in quantum time <span><math><mrow><mover><mi>O</mi><mo>˜</mo></mover><mrow><mo>(</mo><msup><mn>2</mn><mi>n</mi></msup><mo>)</mo></mrow></mrow></math></span>, with <em>O</em>(<em>n</em>) quantum online queries and <em>O</em>(<em>n</em><sup>2</sup>) qubits. Specifically, by constructing new hidden periodic functions corresponding to several BBB MACs, these attacks can recover secret keys using the offline Simon algorithm, leading to forgery attacks. Our attacks improve certain superposition attacks by reducing their data complexity from exponential to polynomial while maintaining the same time complexity. This implies that while BBB MACs achieve beyond-birthday-bound security classically, they cannot maintain the same level of security in quantum settings.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 183-192"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ferromagnetic quantum spin hall effect in 2D rare-earth nitride van der Waals heterostructures 二维稀土氮化物范德华异质结构中的铁磁量子自旋霍尔效应
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.cjph.2026.01.010
Zijian Wang , Yanqing Shen , Weijing Yan , Xin Yang , Qing Ai , Yong Shuai , Zhongxiang Zhou
The manipulation of topological electronic states is a key scientific challenge in the development of next-generation quantum devices. In this work, we propose a universal topological engineering strategy based on magnetic symmetry control, realized via van der Waals heterostructures of rare-earth nitrides and an inert GaS spacer, denoted as XN2/GaS/XN2 (X = Gd, Tb, Dy, Ho, Tm, Er). This platform enables programmable topological phase transitions between ferromagnetic quantum spin Hall insulators (QSHIs) and antiferromagnetic quantum anomalous Hall insulators (QAHIs). By continuously tuning the in-plane magnetization direction, the Berry curvature distribution is effectively modulated, inducing periodic transitions between topologically trivial and nontrivial states. Taking ErN2/GaS/ErN2 as a representative system, we track the evolution of the Chern number and ℤ2 invariant with magnetization orientation, demonstrating a reversible switching between QSHI and QAHI phases. The same mechanism is found to operate across the full series of XN2/GaS/XN2 heterostructures, establishing its generality. These results offer both a robust theoretical framework and a practical material platform for the magnetization-controlled realization of quantum spin and anomalous Hall phases in two-dimensional magnetic van der Waals systems, paving the way for reconfigurable topological devices.
拓扑电子态的操纵是下一代量子器件发展的关键科学挑战。在这项工作中,我们提出了一种基于磁对称控制的通用拓扑工程策略,该策略通过稀土氮化物的范德华异质结构和惰性气体间隔剂XN2/GaS/XN2 (X = Gd, Tb, Dy, Ho, Tm, Er)来实现。该平台实现了铁磁量子自旋霍尔绝缘体(QSHIs)和反铁磁量子反常霍尔绝缘体(QAHIs)之间的可编程拓扑相变。通过不断调整平面内磁化方向,可以有效地调制Berry曲率分布,诱导拓扑平凡和非平凡状态之间的周期性转换。以ErN2/GaS/ErN2为代表系统,我们跟踪了陈氏数和2不变量随磁化方向的演化,证明了QSHI和QAHI相之间的可逆切换。在XN2/GaS/XN2异质结构的整个系列中发现了相同的机制,建立了其普遍性。这些结果为二维磁性范德华体系中量子自旋和反常霍尔相的磁化控制实现提供了一个强大的理论框架和实用的材料平台,为可重构拓扑器件铺平了道路。
{"title":"Ferromagnetic quantum spin hall effect in 2D rare-earth nitride van der Waals heterostructures","authors":"Zijian Wang ,&nbsp;Yanqing Shen ,&nbsp;Weijing Yan ,&nbsp;Xin Yang ,&nbsp;Qing Ai ,&nbsp;Yong Shuai ,&nbsp;Zhongxiang Zhou","doi":"10.1016/j.cjph.2026.01.010","DOIUrl":"10.1016/j.cjph.2026.01.010","url":null,"abstract":"<div><div>The manipulation of topological electronic states is a key scientific challenge in the development of next-generation quantum devices. In this work, we propose a universal topological engineering strategy based on magnetic symmetry control, realized via van der Waals heterostructures of rare-earth nitrides and an inert GaS spacer, denoted as XN<sub>2</sub>/GaS/XN<sub>2</sub> (X = Gd, Tb, Dy, Ho, Tm, Er). This platform enables programmable topological phase transitions between ferromagnetic quantum spin Hall insulators (QSHIs) and antiferromagnetic quantum anomalous Hall insulators (QAHIs). By continuously tuning the in-plane magnetization direction, the Berry curvature distribution is effectively modulated, inducing periodic transitions between topologically trivial and nontrivial states. Taking ErN<sub>2</sub>/GaS/ErN<sub>2</sub> as a representative system, we track the evolution of the Chern number and ℤ<sub>2</sub> invariant with magnetization orientation, demonstrating a reversible switching between QSHI and QAHI phases. The same mechanism is found to operate across the full series of XN<sub>2</sub>/GaS/XN<sub>2</sub> heterostructures, establishing its generality. These results offer both a robust theoretical framework and a practical material platform for the magnetization-controlled realization of quantum spin and anomalous Hall phases in two-dimensional magnetic van der Waals systems, paving the way for reconfigurable topological devices.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 172-182"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First principles study of the structural, electronic and magnetic properties of full-Heusler rare earth-based alloys Pr2RhZ (Z=Al, Ga and In) 全heusler稀土基合金Pr2RhZ (Z=Al, Ga和In)的结构、电子和磁性能第一性原理研究
IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Pub Date : 2026-04-01 Epub Date: 2025-11-19 DOI: 10.1016/j.cjph.2025.11.019
Abdelkader Ilias Bouadi , Mahdi Abane , Mohamed Mokhtari , Fethallah Dahmane
Using the Density functional theory (DFT) based on the full potential linearized augmented plane wave (FP-LAPW) with the GGA-PBE approximation implemented in WIEN2K code, we have investigated the structural, electronic, and magnetic properties of full-Heusler rare earth-based compounds Pr₂RhZ (where Z = Al, Ga, In) in Hg₂CuTi-type and Cu₂MnAl-type configurations. The ferromagnetic- Hg₂CuTi-type structure demonstrated superior stability compared to the Cu₂MnAl-type structure at ambient conditions for all compounds with negative formation energies confirming thermodynamic stability and synthesizability and lattice parameters between 6.846 and 7.038 Å. These alloys exhibit half-metallic behavior with 100 % spin polarization, indirect band gaps (0.235–0.345 eV), and integer magnetic moments of 4 μ_B per formula unit, obeying the Slater-Pauling rule. This work highlights their promise as candidates for spintronic devices, filling a gap in rare-earth Heusler research.
利用基于全势线性化增广平面波(FP-LAPW)的密度泛函理论(DFT)和WIEN2K代码中实现的GGA-PBE近似,研究了Hg₂cuti型和Cu₂mnal型稀土基化合物Pr₂RhZ(其中Z = Al, Ga, in)的结构、电子和磁性能。在环境条件下,所有具有负生成能的化合物的铁磁- Hg₂cuti型结构都比Cu₂mnal型结构具有更好的稳定性,证实了热力学稳定性和可合成性,晶格参数在6.846 ~ 7.038 Å之间。这些合金具有100%自旋极化、间接带隙(0.235 ~ 0.345 eV)和4 μ_B /公式单位的整数磁矩等半金属性质,符合Slater-Pauling规则。这项工作突出了它们作为自旋电子器件候选者的希望,填补了稀土Heusler研究的空白。
{"title":"First principles study of the structural, electronic and magnetic properties of full-Heusler rare earth-based alloys Pr2RhZ (Z=Al, Ga and In)","authors":"Abdelkader Ilias Bouadi ,&nbsp;Mahdi Abane ,&nbsp;Mohamed Mokhtari ,&nbsp;Fethallah Dahmane","doi":"10.1016/j.cjph.2025.11.019","DOIUrl":"10.1016/j.cjph.2025.11.019","url":null,"abstract":"<div><div>Using the Density functional theory (DFT) based on the full potential linearized augmented plane wave (FP-LAPW) with the GGA-PBE approximation implemented in WIEN2K code, we have investigated the structural, electronic, and magnetic properties of full-Heusler rare earth-based compounds Pr₂RhZ (where Z = Al, Ga, In) in Hg₂CuTi-type and Cu₂MnAl-type configurations. The ferromagnetic- Hg₂CuTi-type structure demonstrated superior stability compared to the Cu₂MnAl-type structure at ambient conditions for all compounds with negative formation energies confirming thermodynamic stability and synthesizability and lattice parameters between 6.846 and 7.038 Å. These alloys exhibit half-metallic behavior with 100 % spin polarization, indirect band gaps (0.235–0.345 eV), and integer magnetic moments of 4 μ_B per formula unit, obeying the Slater-Pauling rule. This work highlights their promise as candidates for spintronic devices, filling a gap in rare-earth Heusler research.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 163-171"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Chinese Journal of Physics
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