Chinese Journal of Physics最新文献

{"title":"An estimation magnetic field influence on hemoglobin and oxygen concertation-dependent diffusion in red blood cells: A theoretical and numerical study","authors":"Relja Dragnić ,&nbsp;Ivona Kovačević ,&nbsp;Milan S. Kovačević ,&nbsp;Vladimir M. Marković","doi":"10.1016/j.cjph.2026.01.014","DOIUrl":"10.1016/j.cjph.2026.01.014","url":null,"abstract":"<div><div>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, <span><math><mrow><msub><mi>D</mi><mtext>eff</mtext></msub><mrow><mo>(</mo><mi>B</mi><mo>)</mo></mrow></mrow></math></span>, 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.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 267-288"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074724","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}

{"title":"Shock wave dynamics in a non-ideal dusty rotating gas influenced by magnetic field and radiation heat flux","authors":"Deepika Singh,&nbsp;Anshul Phogat","doi":"10.1016/j.cjph.2026.01.012","DOIUrl":"10.1016/j.cjph.2026.01.012","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 141-162"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074728","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}

{"title":"Control of birhythmicity, and stochastic bifurcation in a self-sustaining system coupled to magnetic flux and driven by noise","authors":"C. Dang-Ra ,&nbsp;A.C. Chamgoué ,&nbsp;A. Troisi ,&nbsp;G. Filatrella ,&nbsp;R. Yamapi","doi":"10.1016/j.cjph.2025.12.008","DOIUrl":"10.1016/j.cjph.2025.12.008","url":null,"abstract":"<div><div>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 <em>Fokker-Planck-Kolmogorov</em> 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.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 193-207"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074731","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}

{"title":"Electron acoustic solitons in nanoparticle doped semiconductor quantum plasmas","authors":"Abhishek Yadav,&nbsp;Punit Kumar","doi":"10.1016/j.cjph.2026.01.005","DOIUrl":"10.1016/j.cjph.2026.01.005","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 308-322"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074732","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}

{"title":"Plasmon-enhanced photoluminescence and SERS in Ag- and Au-based nanohole arrays with Ag nanoparticle decoration","authors":"Sy-Hann Chen ,&nbsp;Yi-Ching Wang ,&nbsp;Xiang-Ren He ,&nbsp;Hsing-Chih Liang ,&nbsp;Hai-Pang Chiang","doi":"10.1016/j.cjph.2026.01.001","DOIUrl":"10.1016/j.cjph.2026.01.001","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"100 ","pages":"Pages 1-9"},"PeriodicalIF":4.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941397","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}

{"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}

{"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}

{"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>²) 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>²) 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}

{"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 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.</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}

{"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}