Chinese Journal of Physics最新文献

{"title":"Goos-Hänchen-like effect in a gapped 8-Pmmn borophene-superlattice","authors":"Farhad Sattari ,&nbsp;Soghra Mirershadi","doi":"10.1016/j.cjph.2025.06.026","DOIUrl":"10.1016/j.cjph.2025.06.026","url":null,"abstract":"<div><div>The spin and valley-dependent Goos-Hänchen-like effect is studied theoretically in a gapped 8-<em>Pmmn</em> borophene superlattice under the external Rashba interaction. It has been observed that the Goos-Hänchen shift value for incident electrons with spin rotation is different from that without spin rotation. It is found that the Goos-Hänchen shift can be easily tuned by the Rashba strength, the number of the superlattice barriers, and the superlattice direction. The Goos-Hänchen shift is an oscillatory function of the Rashba and the energy gap strength, and the oscillatory behavior becomes clearer as the number of superlattice barriers increases. The spin-dependent Goos-Hänchen shift value and sign can be easily adjusted by the energy gap strength. With the increase in the number of superlattice barriers, the number of resonance peaks in the Goos-Hänchen shift increases. The Fano resonances can be observed in a gapped borophene superlattice under the external Rashba interaction.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1203-1211"},"PeriodicalIF":4.6,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570759","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":"Negative Kinetic Energy Supersymmetric Quantum Mechanics","authors":"Huiting Liu,&nbsp;Huan Lu,&nbsp;Yao Liu,&nbsp;Guang Luo","doi":"10.1016/j.cjph.2025.06.039","DOIUrl":"10.1016/j.cjph.2025.06.039","url":null,"abstract":"<div><div>Supersymmetric quantum mechanics(SUSYQM) has been proven to be an extremely effective tool for solving the Schrödinger equation. In recent years, the negative kinetic energy Schrödinger equation has been proposed based on the low-momentum approximation of the Klein-Gordon equation. This paper focuses on the negative kinetic energy SUSYQM. First, the authors briefly review the derivation of the negative kinetic energy Schrödinger equation based on the low-momentum approximation of the Klein-Gordon equation. Second, by solving the negative kinetic energy Schrödinger equation with the linear harmonic oscillator potential, the authors constructed the basic framework of SUSYQM for the negative kinetic energy system. Third, the authors derived the shape invariance, isospectral properties, and the eigen-energies and eigen-wave functions, thereby establishing the theory of the negative kinetic energy SUSYQM of the system. Fourth, the authors investigated the potential algebraic form of shape invariance of the negative kinetic energy SUSYQM. Fifth, the authors discussed the physical significance of the negative kinetic energy SUSYQM in depth. Sixth, as an example, the authors further demonstrated the application of the negative kinetic energy SUSYQM in solving the Schrödinger equation with the trigonometric Pöschl-Teller potential. Finally, the paper concludes with a summary.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1178-1190"},"PeriodicalIF":4.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548351","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":"Comparative study of magnetic properties of a mixed spin-7/2 and spin-2 Ising system: Monte Carlo simulations vs mean-field theory","authors":"Anouar Elidrysy ,&nbsp;Gabin Dimitri Ngantso ,&nbsp;Said Harir ,&nbsp;Mounirou Karimou","doi":"10.1016/j.cjph.2025.06.038","DOIUrl":"10.1016/j.cjph.2025.06.038","url":null,"abstract":"<div><div>The magnetic properties of the mixed-spin (7/2, 2) ferrimagnetic Ising System are systematically investigated using two complementary theoretical approaches: Monte Carlo simulations and mean-field theory. The system is composed of two interpenetrating face-centered cubic sublattices, hosting spin values of 7/2 and 2, respectively, coupled via ferrimagnetic exchange interactions. This study explores phase transitions, critical temperatures, and compensation points, with particular attention to the interplay between first- and second-nearest neighbor exchange interactions. A detailed comparative analysis reveals qualitative agreement between the two methods in predicting key features, such as the existence of compensation temperature and the second-order phase transition. However, notable quantitative discrepancies are observed in the predicted values of critical temperatures and the location of the compensation points, which are attributed to the inherent approximations of mean-field theory. We find that the compensation temperature <em>T_comp</em> emerges and remains constant once the next-nearest-neighbor interaction <span><math><msubsup><mi>J</mi><mn>3</mn><mo>′</mo></msubsup></math></span> of the spin-<em>S</em> sublattice reaches a threshold value of 2.0. These findings not only underline the strengths and limitations of the employed methods, but also provides valuable insights into the complex magnetic behavior of mixed-spin systems.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1420-1434"},"PeriodicalIF":4.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655069","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":"Geometric properties versus particle motion in the Fan-Wang spacetime","authors":"Gulnara Suliyeva ,&nbsp;Kuantay Boshkayev ,&nbsp;Talgar Konysbayev ,&nbsp;Yergali Kurmanov ,&nbsp;Orlando Luongo ,&nbsp;Marco Muccino ,&nbsp;Hernando Quevedo ,&nbsp;Ainur Urazalina ,&nbsp;Anar Dalelkhankyzy","doi":"10.1016/j.cjph.2025.06.013","DOIUrl":"10.1016/j.cjph.2025.06.013","url":null,"abstract":"<div><div>In this work, we explore general relativistic effects and geometric properties of the Fan-Wang spacetime, one of the simplest regular solutions that can be obtained in nonlinear electrodynamics. In particular, we investigate the motion of test particles, the capture cross-section of neutral massive and massless particles, such as neutrinos and photons, and the gravitational redshift. Additionally, using a perturbative approach, we derive analytical expressions for the perihelion shift and gravitational deflection of massless particles. By identifying the one-parameter corrections to the Schwarzschild spacetime induced by the magnetic charge, we show that Fan-Wang metric predicts modifications to classical general relativity even at the local level. Moreover, we argue that these modifications could be experimentally tested with advanced observational instrumentation.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1065-1082"},"PeriodicalIF":4.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518563","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 influence of gravity on the fractal model of imbibition in rough pores considering shape factor","authors":"Shanshan Yang ,&nbsp;Qiong Sheng ,&nbsp;Mingqing Zou ,&nbsp;Qian Zheng","doi":"10.1016/j.cjph.2025.06.034","DOIUrl":"10.1016/j.cjph.2025.06.034","url":null,"abstract":"<div><div>Aiming at the spontaneous imbibition process in irregular rough pores, a fractal model of fluid imbibition into irregular rough pores without gravity and under gravity is established in this paper. The expressions of imbibition height and imbibition mass in irregular rough pores are derived. Then, the effects of relative roughness, gravity factor, fractal dimension, shape factor and other physical quantities on the imbibition process were discussed by sensitivity analysis. The imbibition mass of fluid in irregular rough pores is negatively correlated with relative roughness, and positively correlated with physical quantities such as shape factor, radius ratio and porosity. Moreover, it is found that the average imbibition mass in rough pores with relative roughness of <em>ε</em>₀ = 0.1 is 10.1 % lower than that in smooth pores, and 4.4 % higher than the experimental data, indicating that the imbibition mass in rough pores is more consistent with the experimental data.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1261-1271"},"PeriodicalIF":4.6,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580913","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":"Influence of magnetic field on heat and mass transfer in Ree-Eyring fluid flow induced by membrane contractions","authors":"M.R. Madhavi ,&nbsp;Manjunatha Gudekote ,&nbsp;Nagaraj N Katagi ,&nbsp;Ashwini Bhat ,&nbsp;Prathiksha ,&nbsp;Rajashekhar Choudhari ,&nbsp;Hanumesh Vaidya ,&nbsp;Kerehalli Vinayaka Prasad","doi":"10.1016/j.cjph.2025.06.019","DOIUrl":"10.1016/j.cjph.2025.06.019","url":null,"abstract":"<div><div>The present study emphasises the impact of magnetohydrodynamics (MHD) on Ree-Eyring fluid flow driven by membrane deformations in a microchannel, with heat and mass transfer effects. The upper wall of the channel is modelled as a deforming wall that undergoes periodic membrane contractions, driving unidirectional fluid flow relevant to various physiological transport processes, whereas the bottom wall remains stationary. The flow is generated due to a pressure gradient caused by periodic membrane deformations. The governing equations in this study consist of the conservation of mass, momentum, energy, and mass transport equations. Analytical solutions are derived to describe the flow velocities, heat and mass transfer, development of pressure gradient, shear stress, net flow rate, and streamlines. Additionally, a parametric analysis is conducted using MATLAB R2024a software to examine the influence of Ree-Eyring fluid parameter, magnetic field parameter and membrane shape component on the flow characteristics. The results reveal that interaction among these key parameters significantly impacts flow characteristics. These findings shed light on optimising valveless pumping mechanisms for microscale fluid transport applications, which could impact biomedical devices, lab-on-a-chip systems, and microfluidic technologies that require precise fluid transport control.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1243-1260"},"PeriodicalIF":4.6,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581066","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":"Photon-added coherent states and their quantum entanglement at a beam splitter","authors":"D.N. Makarov","doi":"10.1016/j.cjph.2025.06.012","DOIUrl":"10.1016/j.cjph.2025.06.012","url":null,"abstract":"<div><div>Currently, the study of new quantum states and methods for their generation is an important part of the development of quantum technologies. One of the most important characteristics of such states is their quantum entanglement. Relatively recently, added coherent states were introduced, defined as <span><math><mrow><mrow><mo>|</mo><mi>α</mi><mo>,</mo><mi>n</mi><mo>〉</mo></mrow><mo>=</mo><msub><mrow><mi>N</mi></mrow><mrow><mi>n</mi></mrow></msub><msup><mrow><mfenced><mrow><msup><mrow><mover><mrow><mi>a</mi></mrow><mrow><mo>ˆ</mo></mrow></mover></mrow><mrow><mi>†</mi></mrow></msup></mrow></mfenced></mrow><mrow><mi>n</mi></mrow></msup><mrow><mo>|</mo><mi>α</mi><mo>〉</mo></mrow></mrow></math></span>, where <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>n</mi></mrow></msub></math></span> is a normalization constant, <span><math><mrow><mo>|</mo><mi>α</mi><mo>〉</mo></mrow></math></span> is a coherent state, and <span><math><msup><mrow><mover><mrow><mi>a</mi></mrow><mrow><mo>ˆ</mo></mrow></mover></mrow><mrow><mi>†</mi></mrow></msup></math></span> is a creation operator. In this paper, we consider the quantum entanglement of such states when they pass through a beam splitter, as well as the resulting new quantum states. It is shown that in special cases, this problem has an exact analytical solution. New quantum states have good prospects for their use in quantum technologies.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 974-982"},"PeriodicalIF":4.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479945","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":"Achieving high luminescence efficiency and optical gain of erbium ions (λ = 1540 nm) in a silicon nanocrystalline thin film by a combined approach","authors":"Kaixin Liu ,&nbsp;Fengyang Ma ,&nbsp;Zhongyao Yan ,&nbsp;Xiyuan Dai ,&nbsp;Xiayan Xue ,&nbsp;Shuai Li ,&nbsp;Liang Yu ,&nbsp;Jian Sun ,&nbsp;Ming Lu","doi":"10.1016/j.cjph.2025.06.030","DOIUrl":"10.1016/j.cjph.2025.06.030","url":null,"abstract":"<div><div>A novel erbium (Er³⁺)-doped Si rich oxide (EDSRO) thin film embedded with Si nanocrystals (SiNCs) is developed, which shows near - infrared luminescence at <em>λ</em> = 1540 nm. The EDSRO here makes use of high solubility of Er³⁺ in SiO₂, with SiNCs acting as sensitizers to excite Er³⁺ ions. High photoluminescence quantum yield (PLQY) of the pristine EDSRO is obtained to be 3.3 %. After treatments of the EDSRO by hydrogen passivation, ytterbium-ions doping, and the introduction of extra SiNCs in sequence, further higher PLQY is achieved to be 20.6 %. Meanwhile, the net optical gain finally attained is 272 cm^-1 or 24.3 dB/cm. Both of the PLQY and optical gain are one or two orders of magnitude larger than those of typical erbium-doped Si rich oxides previously reported. The energy transfer efficiency from SiNCs to Er³⁺ is 11.48 %. The results reported here may find applications in developing highly efficient erbium-doped light sources for optical communication.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1011-1019"},"PeriodicalIF":4.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502770","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":"A novel fractional hybrid nanofluid model for blood flow in a stenosed artery with a peripheral plasma layer: Narrowing the gap between Bingham’s model and experiments","authors":"M. Omama ,&nbsp;Ayman A. Arafa ,&nbsp;Ahmed Elsaid ,&nbsp;Takahiko Miyazaki ,&nbsp;Waheed K. Zahra","doi":"10.1016/j.cjph.2025.06.011","DOIUrl":"10.1016/j.cjph.2025.06.011","url":null,"abstract":"<div><div>Understanding blood flow is crucial for improving drug delivery, cardiovascular health, and treatments. This study introduces a novel fractional model for blood flow in stenosed arteries using a <span><math><msub><mrow><mi>TiO</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>-<span><math><mi>Au</mi></math></span> hybrid nanofluid within a two-fluid framework. Red blood cells are modeled as a non-Newtonian Bingham fluid, while plasma is treated as a Newtonian fluid. The formulation incorporates a fractional-order momentum equation, a dual-phase lag fractional energy equation, considering phase lags, a magnetic field, porosity, and thermal radiation. The use of fractional calculus in combination with the two-phase flow approach is intended to capture the complex rheological behavior of blood, including memory effects and non-local characteristics that are often neglected in traditional models. This approach aims to enhance the accuracy of the classical Bingham model and bridge the noticeable gap between its predictions and experimental results. Finite difference methods with Caputo L1 fractional derivatives solve the dimensionless equations. Key parameters analyzed include the Hartmann number, thermal radiation, Darcy number, and fractional orders (<span><math><msub><mrow><mi>α</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span>, <span><math><msub><mrow><mi>α</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>, <span><math><mi>β</mi></math></span>). Results reveal their impact on velocity, temperature, flow rate, wall shear stress, and the Nusselt number. It is found that the fractional Bingham model with plasma outperforms classical models across all degrees of stenosis when compared to experimental data, most notably in mild stenosis, with only a 0.3% error in time-averaged velocity. For the fractional Bingham model, a fractional order of <span><math><msub><mrow><mi>α</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span> = 0.6 aligns best with experimental results across all three stenosis cases, while the hybrid nanofluid enhances both flow and heat transfer. These findings offer insights for biomedical applications, including therapeutic interventions and device design.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 983-1010"},"PeriodicalIF":4.6,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490345","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":"Multiparty-controlled remote control without multipartite entanglement","authors":"Jia Hao ,&nbsp;Yu-Guang Yang ,&nbsp;Yue-Chao Wang ,&nbsp;Guang-Bao Xu ,&nbsp;Dong-Huan Jiang ,&nbsp;Yi-Hua Zhou ,&nbsp;Wei-Min Shi","doi":"10.1016/j.cjph.2025.06.028","DOIUrl":"10.1016/j.cjph.2025.06.028","url":null,"abstract":"<div><div>The multipartite Greenberger-Horne-Zeilinger (GHZ) state is an important resource in multiparty-controlled remote control protocols. However, its fragility and low intensity limit the practical applications of these protocols with current technologies. Here, we present a multiparty-controlled remote control protocol without multipartite entanglement. Then, we analyze the performance of our protocol under certain types of noise, and compare our protocol with existing GHZ-state-based protocols. We also show that our protocol exhibits a unique advantage: it can tolerate an arbitrary number of nonresponsive agents. This study provides a practical pathway for multiparty-controlled remote control.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"96 ","pages":"Pages 1035-1046"},"PeriodicalIF":4.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502768","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}