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Probing the mesoscopics of competing interactions with the thermodynamic curvature: The case of a two-parameter axial next-nearest-neighbor Ising chain. 探索与热力学曲率竞争相互作用的介观：双参数轴向次近邻伊辛链的情况。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-03-01 DOI: 10.1103/PhysRevE.111.L022105
Soumen Khatua, Anurag Sahay
{"title":"Probing the mesoscopics of competing interactions with the thermodynamic curvature: The case of a two-parameter axial next-nearest-neighbor Ising chain.","authors":"Soumen Khatua, Anurag Sahay","doi":"10.1103/PhysRevE.111.L022105","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.L022105","url":null,"abstract":"<p><p>This Letter examines the full scope of long-standing conjectures identifying the invariant thermodynamic curvature R as the correlation volume ξ^{d} and also as a measure of underlying statistical interactions. To this end, we set up a two-parameter axial next nearest neighbor Ising (ANNNI) chain featuring two next nearest neighbor (nnn) and a nearest neighbor (nn) interaction. Competing interactions and resulting frustrations engender a rich phase behavior including a crossover between two ferrimagnetic subphases. We show that R attests to all its conjectured attributes with valuable physical insights into the character of mesoscopic fluctuating substructures. In a remarkable demonstration of its relevance at a far-from-critical point, R is shown to resolve a hitherto unnoticed tricky issue involving ξ. A physically transparent expression for the zero field R helps bring into focus the pivotal role played by some third order fluctuation moments.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2","pages":"L022105"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659252","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
Dynamics of fluid-driven fractures across material heterogeneities. 跨材料非均质流体驱动裂缝动力学。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-03-01 DOI: 10.1103/PhysRevE.111.025504
Sri Savya Tanikella, Marie C Sigallon, Emilie Dressaire
{"title":"Dynamics of fluid-driven fractures across material heterogeneities.","authors":"Sri Savya Tanikella, Marie C Sigallon, Emilie Dressaire","doi":"10.1103/PhysRevE.111.025504","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025504","url":null,"abstract":"<p><p>Fracture propagation is highly sensitive to the conditions at the crack tip. In heterogeneous materials, microscale obstacles can cause propagation instabilities. Macroscopic heterogeneities modify the stress field over scales larger than the tip region. Here we experimentally investigate the propagation of fluid-driven fractures through multilayered materials. We focus on analyzing fracture profiles formed upon injection of a low-viscosity fluid into a two-layer hydrogel block. Experimental observations highlight the influence of the originating layer on fracture dynamics. Fractures that form in the softer layer are confined, with no penetration in the stiffer layer. Conversely, fractures initiated within the stiffer layer experience rapid fluid transfer into the softer layer when reaching the interface. We report the propagation dynamics and show that it is controlled by the toughness contrast between neighboring layers, which drives fluid flow. We model the coupling between elastic deformation, material toughness, and volume conservation. After a short transient regime, scaling arguments capture the dependence of the fracture geometry on material properties, injection parameters, and time. These results show that stiffness contrast can modify fracture propagation over large length scales and demonstrate the importance of macroscopic scale heterogeneities on fracture dynamics. These results have implications for climate change mitigation strategies involving the storage of heat and carbon dioxide in stratified underground rock formations.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025504"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659153","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
Energy-momentum-conserving stochastic differential equations and algorithms for the nonlinear Landau-Fokker-Planck equation. 非线性Landau-Fokker-Planck方程的能量动量守恒随机微分方程和算法。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-03-01 DOI: 10.1103/PhysRevE.111.025211
Yichen Fu, Justin R Angus, Hong Qin, Vasily I Geyko
{"title":"Energy-momentum-conserving stochastic differential equations and algorithms for the nonlinear Landau-Fokker-Planck equation.","authors":"Yichen Fu, Justin R Angus, Hong Qin, Vasily I Geyko","doi":"10.1103/PhysRevE.111.025211","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025211","url":null,"abstract":"<p><p>Coulomb collision is a fundamental diffusion process in plasmas that can be described by the Landau-Fokker-Planck (LFP) equation or the stochastic differential equation (SDE). While energy and momentum are conserved exactly in the LFP equation, they are conserved only on average by the conventional corresponding SDEs, suggesting that the underlying stochastic process may not be well defined by such SDEs. In this study, we derive new SDEs with exact energy-momentum conservation for the Coulomb collision by factorizing the collective effect of field particles into individual particles and enforcing Newton's third law. These SDEs, when interpreted in the Stratonovich sense, have a particularly simple form that represents pure diffusion between particles without drag. To demonstrate that the new SDEs correspond to the LFP equation, we develop numerical algorithms that converge to the SDEs and preserve discrete conservation laws. Simulation results are presented in a benchmark of various relaxation processes.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025211"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659178","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
Effects of drag coefficients on substrate-based cell motility. 阻力系数对基底细胞运动的影响
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024405
Xuan-Lin Chen
{"title":"Effects of drag coefficients on substrate-based cell motility.","authors":"Xuan-Lin Chen","doi":"10.1103/PhysRevE.111.024405","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024405","url":null,"abstract":"<p><p>Substrate-based cell motility is crucial for biological processes, and heterogeneity in the physical properties of the substrate can influence the outcomes of these processes. We demonstrate numerically the impact of different adhesion strengths on one substrate, achieved by adjusting the drag coefficients of different regions on the substrate, on cellular dynamics. We observed that, given the same initial cell location relative to the interface between two regions with different adhesion strengths, the behavior of a cell differs depending on whether it is initially a static cell or a stationary moving cell. Furthermore, we also introduced external stimulation to the cell. The cellular motility behavior around the interface can also be affected by adjusting the magnitude, range, and duration of the external stimulation.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024405"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143657941","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
Hydrodynamics of a hard-core active lattice gas. 硬核活性晶格气体的流体力学。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024128
Ritwik Mukherjee, Soumyabrata Saha, Tridib Sadhu, Abhishek Dhar, Sanjib Sabhapandit
{"title":"Hydrodynamics of a hard-core active lattice gas.","authors":"Ritwik Mukherjee, Soumyabrata Saha, Tridib Sadhu, Abhishek Dhar, Sanjib Sabhapandit","doi":"10.1103/PhysRevE.111.024128","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024128","url":null,"abstract":"<p><p>We present a fluctuating hydrodynamic description of an active lattice gas model with excluded volume interactions that exhibits motility-induced phase separation under appropriate conditions. For quasi-one-dimension and higher, stability analysis of the noiseless hydrodynamics gives quantitative bounds on the phase boundary of the motility-induced phase separation in terms of spinodal and binodal. Inclusion of the multiplicative noise in the fluctuating hydrodynamics describes the exponentially decaying two-point correlations in the stationary-state homogeneous phase. Our hydrodynamic description and theoretical predictions based on it are in excellent agreement with our Monte Carlo simulations and pseudospectral iteration of the hydrodynamics equations. Our construction of hydrodynamics for this model is not suitable in strictly one dimension with single-file constraints, and we argue that this breakdown is associated with microphase separation.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024128"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659188","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
Crystal nucleation rates in one-component Yukawa systems. 单组分汤川体系的结晶成核速率。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.025206
B Arnold, J Daligault, D Saumon, Antoine Bédard, S X Hu
{"title":"Crystal nucleation rates in one-component Yukawa systems.","authors":"B Arnold, J Daligault, D Saumon, Antoine Bédard, S X Hu","doi":"10.1103/PhysRevE.111.025206","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025206","url":null,"abstract":"<p><p>Nucleation in the supercooled Yukawa system is relevant for addressing current challenges in understanding a range of crystallizing systems including white dwarf (WD) stars. We use both brute force and seeded molecular dynamics simulations to study homogeneous nucleation of crystals from supercooled Yukawa liquids. With our improved approach to seeded simulations, we obtain quantitative predictions of the crystal nucleation rate and cluster size distributions as a function of temperature and screening length. These quantitative results show trends towards fast nucleation with short-ranged potentials. They also indicate that for temperatures T>0.9T_{m}, where T_{m} is the melt temperature, classical homogeneous nucleation is too slow to initiate crystallization but transient clusters of ∼100 particles should be common. We apply these general results to a typical WD model and obtain a delay of ∼0.6 Gyr in the onset of crystallization that may be observable.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025206"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659214","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
Memory-induced current reversal of Brownian motors. 布朗电机的记忆感应电流反转。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024130
Mateusz Wiśniewski, Jakub Spiechowicz
{"title":"Memory-induced current reversal of Brownian motors.","authors":"Mateusz Wiśniewski, Jakub Spiechowicz","doi":"10.1103/PhysRevE.111.024130","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024130","url":null,"abstract":"<p><p>The kinetics of biological motors such as kinesin or dynein is notably influenced by a viscoelastic intracellular environment. The characteristic relaxation time of the cytosol is not separable from the colloidal timescale and therefore their dynamics is inherently non-Markovian. In this paper, we consider a variant of a Brownian motor model, namely, a Brownian ratchet immersed in a correlated thermal bath, and we analyze how memory influences its dynamics. In particular, we demonstrate the memory-induced current reversal effect and explain this phenomenon by applying the effective mass approximation as well as uncovering the memory-induced dynamical localization of the motor trajectories in the phase space. Our results reveal new aspects of the role of memory in microscopic systems out of thermal equilibrium.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024130"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659232","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
Stabilization of a transition state by excited vibration and impact on the reaction rate in the three-body Lennard-Jones system. 三体Lennard-Jones体系中激发态的稳定及其对反应速率的影响。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024204
Yoshiyuki Y Yamaguchi
{"title":"Stabilization of a transition state by excited vibration and impact on the reaction rate in the three-body Lennard-Jones system.","authors":"Yoshiyuki Y Yamaguchi","doi":"10.1103/PhysRevE.111.024204","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024204","url":null,"abstract":"<p><p>The three-body Lennard-Jones system on the plane has a transition state, which is the straight conformation located at a saddle point of the potential-energy landscape. We show that the transition state can be dynamically stabilized by excited vibration of particle distances. The stabilization mechanism is explained theoretically and is verified by performing molecular dynamics simulations. We also examine whether the dynamical stabilization gives an impact on the reaction rate between the two isomers of equilateral triangle conformations by comparing with the transition-state theory.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024204"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659277","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
Sensitivity of the dynamic-shell target to laser drive nonuniformities. 动态壳靶对激光驱动非均匀性的敏感性。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.025210
William Trickey, T J B Collins, I V Igumenshchev, V N Goncharov, A Shvydky
{"title":"Sensitivity of the dynamic-shell target to laser drive nonuniformities.","authors":"William Trickey, T J B Collins, I V Igumenshchev, V N Goncharov, A Shvydky","doi":"10.1103/PhysRevE.111.025210","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025210","url":null,"abstract":"<p><p>The dynamic-shell concept for inertial confinement fusion (ICF) uses an initially homogeneous target and a carefully shaped laser pulse to form a shell and implode it. The laser pulse consists of a series of pickets that drive shocks into the target. The first few shocks converge inwards and rebound from the center of the target, creating an expanding, low-density plasma. Subsequent shocks are launched into the expanding plasma and eventually coalesce to form a shell, which is then imploded with a traditional ICF laser pulse. This study describes radiation-hydrodynamic simulations that investigate the sensitivity of dynamic-shell targets to imperfections in the laser drive. A one-dimensional (1D) study looks at mistiming and power variations in the pickets and a two-dimensional (2D) study examines irradiation perturbations imposed by the laser-beam geometry. Simulations show that less than ∼2% power imbalance or 200 ps timing variation in the pickets is sufficient to keep the yield above 90% of the maximum. Additionally, the 2D simulations show that 72 or more beams are required to keep irradiation nonuniformities low enough to obtain fusion yields close to that of 1D simulations.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025210"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659392","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
Limits to positional information in boundary-driven systems. 边界驱动系统中位置信息的限制。
IF 2.2 3区 物理与天体物理
Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.L022102
Prashant Singh, Karel Proesmans
{"title":"Limits to positional information in boundary-driven systems.","authors":"Prashant Singh, Karel Proesmans","doi":"10.1103/PhysRevE.111.L022102","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.L022102","url":null,"abstract":"<p><p>Chemical gradients can be used by a particle to determine its position. This positional information is of crucial importance, for example, in developmental biology in the formation of patterns in an embryo. The central goal of this paper is to study the fundamental physical limits on how much positional information can be stored inside a system. To achieve this, we study positional information for boundary-driven systems, and derive, in the near-equilibrium regime, a universal expression involving only the chemical potential and density gradients of the system. We also conjecture that this expression serves as an upper bound on the positional information of boundary-driven systems beyond linear response. To support this claim, we test it on a broad range of solvable boundary-driven systems.</p>","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2","pages":"L022102"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659179","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
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