The European Physical Journal Plus最新文献_第2页

Energy-balance structure and radial regulation in a four-dimensional skew-gradient chaotic flow 四维斜梯度混沌流的能量平衡结构与径向调节

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-05 DOI: 10.1140/epjp/s13360-026-08509-4

Deivasundari Muthukumar, Karthikeyan Rajagopal, Anitha Karthikeyan

{"title":"Energy-balance structure and radial regulation in a four-dimensional skew-gradient chaotic flow","authors":"Deivasundari Muthukumar, Karthikeyan Rajagopal, Anitha Karthikeyan","doi":"10.1140/epjp/s13360-026-08509-4","DOIUrl":"10.1140/epjp/s13360-026-08509-4","url":null,"abstract":"<div><p>We analyze a four-dimensional dissipative flow obtained by augmenting the Lorenz core with two couplings that are orthogonal to the gradient of a quadratic energy and with a damped fourth variable; when both couplings vanish, the first three equations are exactly the Lorenz system. Splitting the vector field into a skew-gradient circulation and a symmetric part leaves an exact radial balance between a sign-indefinite shear input and a non-positive diagonal loss. A shifted quadratic function gives a globally attracting ball for every value of the added couplings. The non-trivial equilibria lose stability through a Hopf bifurcation at a shear gain of 10.83, where the largest Lyapunov exponent first reaches zero, and the reference attractor has a largest exponent of 1.16. Radial state feedback cannot make the target energy sphere invariant, but every nonzero trajectory enters a forward-invariant band whose width decreases inversely with the gain, and every closed-loop equilibrium is displaced from the target by a Rayleigh quotient divided by the gain. For coupled rings, the master-stability function locates the synchronization threshold, while partial radial actuation improves the mean energy at the cost of full-state coherence. Under additive noise, converged ensembles of one hundred realizations confirm a linearized prediction of the excess energy variance to within five percent at strong feedback. An analog realization with operational amplifiers and multipliers reproduces the attractor and its energy statistics in circuit simulation.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338143","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}

引用次数: 0

A composite adversarial unsaturated potential function for enhanced stochastic resonance and fault detection 一种用于增强随机共振和故障检测的复合对抗非饱和势函数

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-05 DOI: 10.1140/epjp/s13360-026-08507-6

Chi Zhang, Hongyu Wang, Ping Zong

{"title":"A composite adversarial unsaturated potential function for enhanced stochastic resonance and fault detection","authors":"Chi Zhang, Hongyu Wang, Ping Zong","doi":"10.1140/epjp/s13360-026-08507-6","DOIUrl":"10.1140/epjp/s13360-026-08507-6","url":null,"abstract":"<div><p>Stochastic resonance (SR) is a powerful nonlinear technique for amplifying weak signals via noise, widely utilized in early fault detection. However, traditional SR systems often suffer from output saturation effects, which severely limit amplification capability and degrade detection performance. To address this issue, this paper proposes a composite Adversarial Unsaturated Tri-stable Stochastic Resonance (AUTSR) model. By introducing a bounded correction derived from the Woods–Saxon profile in the outer region, AUTSR mitigates output saturation over a finite operating range while retaining polynomial confinement at large displacements. Furthermore, an adaptive fault detection scheme is established by integrating the genetic algorithm (GA) for optimal parameter tuning. Simulations and experiments on bearing fault signals show that AUTSR achieves higher output signal-to-noise ratios (SNRs) and larger peak-to-interference differences than classical tri-stable stochastic resonance (TSR), linear piecewise tri-stable stochastic resonance (LPTSR), and quadratic piecewise tri-stable stochastic resonance (QPTSR) in the investigated cases. These improvements facilitate characteristic fault frequency detection in noisy environments.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338389","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}

引用次数: 0

Impact of localized compressing electromagnetic force on the submerged liquid metal jet 局部压缩电磁力对浸入式液态金属射流的影响

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-05 DOI: 10.1140/epjp/s13360-026-08495-7

Alexandr Poluyanov, Ilya Kolesnichenko, Ephim Golbraikh

{"title":"Impact of localized compressing electromagnetic force on the submerged liquid metal jet","authors":"Alexandr Poluyanov, Ilya Kolesnichenko, Ephim Golbraikh","doi":"10.1140/epjp/s13360-026-08495-7","DOIUrl":"10.1140/epjp/s13360-026-08495-7","url":null,"abstract":"<div><p>The behavior of a submerged jet of an electrically conducting fluid under the impact of an external compressing electromagnetic force has been studied numerically. Based on the results obtained, a mechanism for the homogenization of a jet flow in a cylindrical channel by means of a non-contact force application has been revealed. The force is generated by a short solenoid, carrying an alternating current. The action of this force leads to the generation of a poloidal vortex flow in the form of two tori. Under a weak force, the jet flow experiences moderate deformation, which is accompanied by the development of the vortex flow. Certain fluctuations are transferred by the flow through the region of the force action, maintaining high intensity at a certain distance from the main flow. In the case of a strong force it is impossible to trace individual fluctuation due to the high level of the flow stirring. The impact of a strong force creates a fully developed flow with intense fluctuations in both the poloidal and azimuthal velocity components. This ensures the formation of a uniform mean velocity profile at the channel outlet.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338124","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}

引用次数: 0

The effect of nuclear deformation and thermal fluctuations on the pairing phase transition in (mathrm {mathbf {{}^{96}Mo}}) 研究了核变形和热波动对双相相变的影响 (mathrm {mathbf {{}^{96}Mo}})

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-04 DOI: 10.1140/epjp/s13360-026-08504-9

Sh. Afrookhteh

{"title":"The effect of nuclear deformation and thermal fluctuations on the pairing phase transition in (mathrm {mathbf {{}^{96}Mo}})","authors":"Sh. Afrookhteh","doi":"10.1140/epjp/s13360-026-08504-9","DOIUrl":"10.1140/epjp/s13360-026-08504-9","url":null,"abstract":"<div><p>In this paper, we have investigated the effects of nuclear deformation and thermal fluctuations on the thermodynamic quantities of the <span>({}^{96})</span>Mo nucleus. To this end, the thermodynamic quantities of the <span>({}^{96})</span>Mo were calculated within the framework of the mean gap BCS model (MEGBCS) and compared with the predictions of the BCS model. Our results demonstrate that, in contrast to the BCS model which predicts the vanishing of pairing at the critical temperature, the inclusion of thermal fluctuations in the MEGBCS model allows pairing to persist beyond the critical temperature, eventually tending toward a constant value at various nuclear deformations. In addition, accounting for thermal fluctuations eliminates the kinks observed in the excitation energy and entropy as a function of temperature for various deformations, thereby inducing a smooth behavior in these thermodynamic quantities. Furthermore, the MEGBCS model exhibits an S-shape in the heat capacity versus temperature, which is interpreted as a phase transition from the paired phase to the normal phase. It was also observed that increasing the nuclear deformation leads to an increase in the phase transition temperature of the nucleus.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338046","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}

引用次数: 0

A general-purpose trigger and tracking system for the beam tests of particle detector prototypes 一种用于粒子探测器原型光束测试的通用触发和跟踪系统

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-04 DOI: 10.1140/epjp/s13360-026-08468-w

D. Cerasole, L. Congedo, D. Dell’Olio, G. De Robertis, L. Di Venere, M. Franco, F. Gargano, M. Giliberti, N. Lacalamita, F. Licciulli, A. Liguori, R. Liotino, P. Loizzo, F. Loparco, L. Lorusso, F. Maiorano, S. Martiradonna, M. N. Mazziotta, M. Mongelli, N. Nicassio, G. Panzarini, R. Pillera, M. Rizzi, D. Serini, R. Triggiani, G. Volpe

{"title":"A general-purpose trigger and tracking system for the beam tests of particle detector prototypes","authors":"D. Cerasole, L. Congedo, D. Dell’Olio, G. De Robertis, L. Di Venere, M. Franco, F. Gargano, M. Giliberti, N. Lacalamita, F. Licciulli, A. Liguori, R. Liotino, P. Loizzo, F. Loparco, L. Lorusso, F. Maiorano, S. Martiradonna, M. N. Mazziotta, M. Mongelli, N. Nicassio, G. Panzarini, R. Pillera, M. Rizzi, D. Serini, R. Triggiani, G. Volpe","doi":"10.1140/epjp/s13360-026-08468-w","DOIUrl":"10.1140/epjp/s13360-026-08468-w","url":null,"abstract":"<div><p>The research and development of new detectors for high-energy particle physics includes a prototyping phase followed by a validation study usually through dedicated beam-test campaigns. In this context, the characterization of a detector typically requires ancillary systems capable of providing precise triggering, synchronization, and reference tracking information. We propose a general-purpose trigger and tracking system, a flexible and portable solution designed for beam-test applications providing data readout across heterogeneous detector subsystems and accurate event reconstruction, based on commercial off-the-shelf components. The system integrates a scalable low-cost trigger and tracking (TT) setup based on scintillating fibers and SiPMs, a centralized master unit responsible for trigger generation and distribution, and a modular DAQ architecture enabling synchronous event-by-event readout of both the TT and the devices under test. A dedicated control software provides unified run control and system configuration. The proposed system is the final product of an intense R&D activity carried out by our group in recent years on scintillating fiber trackers equipped with SiPM readout. It has found applications in the beam tests of different prototypes of various detectors performed at the CERN PS and SPS facilities. In this paper, we will present, as an example, the results of a test performed on a RICH prototype at the CERN PS.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338047","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}

引用次数: 0

Optical and electronic properties of GaAs quantum rings for photodetector applications: effects of elliptical deformation and intense laser fields 用于光电探测器的砷化镓量子环的光学和电子特性：椭圆变形和强激光场的影响

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-04 DOI: 10.1140/epjp/s13360-026-08482-y

Sake Wang, Belhadj Walid, Hassen Dakhlaoui

{"title":"Optical and electronic properties of GaAs quantum rings for photodetector applications: effects of elliptical deformation and intense laser fields","authors":"Sake Wang, Belhadj Walid, Hassen Dakhlaoui","doi":"10.1140/epjp/s13360-026-08482-y","DOIUrl":"10.1140/epjp/s13360-026-08482-y","url":null,"abstract":"<div><p>In this work, we investigate the simultaneous effects of quantum-ring (QR) elliptical deformation and an external laser field on the electronic and optical properties of a GaAs/AlGaAs QR. The energy levels of low-lying states are calculated by solving the two-dimensional Schrödinger equation in Cartesian coordinates within the effective mass approximation, using the finite difference technique. Two optical absorption coefficients <span>(left( {alpha _{{12}} ;{text{and}};alpha _{{13}} } right))</span> were addressed by increasing the laser field intensity, and the tendency of their shift was discussed. Our findings show that <span>(x)</span>-polarized light enhances <span>({alpha}_{13})</span>, while suppressing<span>({alpha}_{12})</span>, whereas <span>(y)</span>-polarized light enhances <span>({alpha}_{12})</span> while suppressing <span>({alpha}_{13}.)</span> Additionally, our results demonstrate that the degeneracy of the excited states can be removed either by increasing the laser field intensity or by augmenting the elliptical deformation of the QR. A stronger elliptical deformation produces a significant separation between the two optical absorption coefficients, (<span>({alpha}_{12})</span> and<span>({alpha}_{13})</span>), while the laser dressing parameter offers supplementary control over their resonant energies. These properties open the door for designing tunable quantum-ring photodetectors operating over different bands within the far-infrared/terahertz spectral range.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338495","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}

引用次数: 0

Microstrain induced optical band gap evolution in Ag-doped MgO nanostructures produced by the sol–gel technique 溶胶-凝胶法制备ag掺杂MgO纳米结构的微应变诱导光学带隙演化

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-04 DOI: 10.1140/epjp/s13360-026-08496-6

Muhaj Talib Abdullah, Mazin Sherzad Othman

{"title":"Microstrain induced optical band gap evolution in Ag-doped MgO nanostructures produced by the sol–gel technique","authors":"Muhaj Talib Abdullah, Mazin Sherzad Othman","doi":"10.1140/epjp/s13360-026-08496-6","DOIUrl":"10.1140/epjp/s13360-026-08496-6","url":null,"abstract":"<div><p>The synthesis of pure and Ag-doped MgO nanoparticles with different amounts of Ag (0, 5, 10, and 25 wt. %) was carried out using sol–gel method, and the samples were calcined for 3h at 300 °C. Structural, morphological, chemical, and optical properties of the fabricated samples were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and UV–Visible spectroscopy. The XRD analysis confirmed the crystalline MgO structure and showed the changes in the structural parameters with concentration. The crystallite size was found to be 6.54 nm for pure MgO and decreased to 11.75 nm at 5 wt.% Ag and then to 6.73 nm at 25 wt.% Ag. The microstrain of the pure MgO decreased by 0.0378, while the one at 25 wt.% Ag decreased to 0.0116 (69.3% reduction). The optical band gap was observed to increase from 5.50 eV in pure MgO to 6.20 eV in the 25 wt.% Ag-doped sample, and the Urbach energy was found to decrease from 0.45 eV in pure MgO to 0.27 eV in the 25 wt% Ag-doped sample. The synthesized nanoparticles were also analyzed by SEM and FTIR, which gave additional information about the morphology and chemical bonding characteristics of the nanoparticles, respectively. The refractive index and dielectric parameters also changed as a function of Ag concentration, suggesting a change in the optical properties of MgO. Overall, the incorporation of Ag resulted in measurable variations in the structural, morphological, chemical and optical properties of the MgO nanoparticles, with the sample with 25 wt.% Ag showing the maximum optical band gap and the minimum Urbach energy of the investigated compositions. The results show that the incorporation of Ag can be used to tune the properties of MgO nanoparticles for the use in UV-related optoelectronic and photonic applications.query{Please check the edit made in the article title.}</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338405","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}

引用次数: 0

Influence of heat flux and inlet velocity on conjugate heat transfer in microchannel heat sinks with different pin-fins configurations 不同翅片结构微通道散热器热流密度和入口速度对共轭传热的影响

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-03 DOI: 10.1140/epjp/s13360-026-08486-8

Rasul Mohebbi, Maedeh Mayani, Yuan Ma

{"title":"Influence of heat flux and inlet velocity on conjugate heat transfer in microchannel heat sinks with different pin-fins configurations","authors":"Rasul Mohebbi, Maedeh Mayani, Yuan Ma","doi":"10.1140/epjp/s13360-026-08486-8","DOIUrl":"10.1140/epjp/s13360-026-08486-8","url":null,"abstract":"<div><p>This study numerically investigates the conjugate heat transfer and fluid flow characteristics in microchannel heat sinks (MCHS) featuring four distinct pin–fin configurations, namely trident-headed pin-fins (TPF), hollow cylindrical pin-fins (HCPF), solid rectangular fins (SRF), and hollow rectangular fins (HRF), under varying heat fluxes (10–200 W/cm<sup>2</sup>) and inlet velocities (0.1–6 m/s). A three-dimensional conjugate heat transfer model is employed to analyze the underlying physical mechanisms, revealing that while the average bottom wall temperature and temperature non-uniformity exhibit a strong linear dependence on heat flux, increasing the inlet velocity enhances cooling performance with a distinct nonlinear sensitivity, where the convective heat transfer optimization efficiently plateaus toward higher flow rates. Comparative analysis of the geometric topologies indicates that although the four designs achieve comparable global heat dissipation capacities, the HCPF configuration consistently demonstrates superior thermal uniformity by maintaining the minimum temperature non-uniformity throughout the investigated velocity range. These findings suggest that the HCPF configuration offers a highly promising topology for enhancing localized thermal uniformity, providing valuable design guidelines for improving the structural reliability and thermal management of high-power density micro-electronic devices.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149309756","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}

引用次数: 0

Effect of viscous dissipation and throughflow on the onset of thermal instabilities in an inclined porous layer with mixed thermal boundary condition 在混合热边界条件下，粘性耗散和通流对倾斜多孔层热不稳定性开始的影响

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-03 DOI: 10.1140/epjp/s13360-026-08458-y

Devraj Das, Venkatarao Chukka

{"title":"Effect of viscous dissipation and throughflow on the onset of thermal instabilities in an inclined porous layer with mixed thermal boundary condition","authors":"Devraj Das, Venkatarao Chukka","doi":"10.1140/epjp/s13360-026-08458-y","DOIUrl":"10.1140/epjp/s13360-026-08458-y","url":null,"abstract":"<div><p>The onset of thermal instabilities in an inclined porous layer is investigated, with the combined effects of viscous dissipation, imposed throughflow, and mixed thermal boundary condition. The impermeable porous layer exchanges heat with the surrounding environment at the lower boundary through a finite heat transfer condition, characterised by the Biot number (<i>Bi</i>), while the upper boundary is maintained at a prescribed temperature. The base state admits a non-quiescent flow due to the imposed inclined throughflow. A linear stability analysis is employed to investigate the emergence of instabilities in the form of longitudinal and transverse rolls. The analysis shows that longitudinal disturbances are the most unstable across the entire parameter space, while transverse modes remain subdominant and are always oscillatory. For a horizontal layer, only a single stationary instability mode exists. Transverse disturbances can grow only when the inclination angle is below a critical threshold; as this limit is approached, the corresponding neutral stability curves form closed loops that progressively shrink and collapse to an isola point and disappear. Under weak boundary heat exchange, the inclination induces a cusp-type transition in the instability. Notably, in certain regimes, the critical threshold becomes zero or negative, indicating the possibility of instability even in the absence of a destabilising thermal gradient across the porous layer or when the top layer is hotter than the bottom one.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338168","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}

引用次数: 0

Self-consistency of the generalized uncertainty principle modified membrane model and its consistency with the weak cosmic censorship condition in Reissner–Nordström–de Sitter black holes 广义不确定原理修正膜模型的自洽性及其与Reissner-Nordström-de Sitter黑洞弱宇宙审查条件的一致性

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2026-11-03 DOI: 10.1140/epjp/s13360-026-08489-5

Hao Tang, Jia Zhang, Bo An, Zhimo Wang

{"title":"Self-consistency of the generalized uncertainty principle modified membrane model and its consistency with the weak cosmic censorship condition in Reissner–Nordström–de Sitter black holes","authors":"Hao Tang, Jia Zhang, Bo An, Zhimo Wang","doi":"10.1140/epjp/s13360-026-08489-5","DOIUrl":"10.1140/epjp/s13360-026-08489-5","url":null,"abstract":"<div><p>We investigate four-dimensional Reissner–Nordström–de Sitter (RN-dS) black holes within the generalized uncertainty principle (GUP) modified membrane model. The conventional membrane model is plagued by an unnatural cutoff that might lack fundamental physical meaning. In this work, we resolve this issue by introducing a natural, quantum-gravity-motivated cutoff derived from the minimal length predicted by the GUP. Using the membrane paradigm, we compute the free energy and entropy of quantum fields confined near the horizon and enforce normalization to the Bekenstein–Hawking entropy. We analytically solve the membrane thickness and show that its positive definiteness is strictly equivalent to the positivity of surface gravity at the event horizon, which in turn supports the validity of WCCC. The model also naturally breaks down at the Planck scale, consistent with the expected limit of semiclassical gravity. Our results reveal a consistent link between quantum-gravity-motivated horizon thermodynamics and the non-degeneracy condition underlying cosmic censorship.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"141 11","pages":""},"PeriodicalIF":2.9,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149338169","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}

引用次数: 0