Physical Review E最新文献_第7页

Linear control theory for jammed particle systems. 堵塞粒子系统的线性控制理论。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/957n-78kx

Erin G Teich, Jason Z Kim, Dani S Bassett

{"title":"Linear control theory for jammed particle systems.","authors":"Erin G Teich, Jason Z Kim, Dani S Bassett","doi":"10.1103/957n-78kx","DOIUrl":"https://doi.org/10.1103/957n-78kx","url":null,"abstract":"Amorphous particulate matter constitutes a wide range of natural and synthetic materials. Despite this ubiquity, the way in which these systems' disordered microstructure couples to their often subtle and complex dynamical behavior is not yet fully understood, with profound consequences for phenomena ranging from landscape evolution to cellular unjamming during tumor metastasis. With this paper, we introduce tools from linear control theory that quantify system response to external input, and demonstrate their utility in elucidating the dynamics of jammed amorphous materials under stress. Our results indicate that average controllability, the response of a system to perturbation, strongly correlates with particle rearrangement in systems subject to quasistatic shear, implying that average controllability is an accurate predictor of rearrangement dynamics in certain contexts. Moreover, we show that the timescale over which average controllability is calculated can be tuned to optimize its predictive capacity for particle rearrangement. Values of the optimal timescale provide physical insight into the system; namely, that multiple rearranging particles participate on average in vibrational eigenmodes of lower and lower energy as the system is sheared until the rearrangement event. Broadly, our study demonstrates that linear control theory is a promising mathematical framework for predicting and designing mechanical response in disordered media.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-2","pages":"025425"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018363","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

Quantum statistical mechanical gauge invariance. 量子统计力学规范不变性。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/dzz3-m28k

Johanna Müller, Matthias Schmidt

引用次数: 0

Critical scaling and supercritical coarsening in active model B. 活性模型B的临界结垢和超临界粗化。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/qktx-n35r

Abir Bhowmick, P K Mohanty

引用次数: 0

Collective communication in a transparent world: Phase transitions in a many-body Potts model and a social-quantum correspondence. 透明世界中的集体交流：多体波茨模型中的相变和社会量子对应。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/ptty-5zxd

Pawat Akara-Pipattana, Sergei Nechaev, Bogdan Slavov

{"title":"Collective communication in a transparent world: Phase transitions in a many-body Potts model and a social-quantum correspondence.","authors":"Pawat Akara-Pipattana, Sergei Nechaev, Bogdan Slavov","doi":"10.1103/ptty-5zxd","DOIUrl":"https://doi.org/10.1103/ptty-5zxd","url":null,"abstract":"Digitally connected societies approach a \"transparent\" regime where all agents can interact without geographic or social barriers-a limit realized by complete graph topologies. We construct a mean-field theory of a q-state Potts model with many-body interactions on this geometry, modeling agents from q distinct communities. Analyzing the illustrative case of competing pairwise and three-body couplings, we identify three equilibrium phases in the thermodynamic limit: symmetric (all communities equal), reduced symmetry (q-1 communities surviving), and consensus (one dominant group). For two-community systems, we identify a special coupling regime where the influence of interactions cancels out, yielding purely entropy-driven dynamics-a statistical physics representation of atomized societies without structured influence. Monte Carlo simulations confirm these regimes and reveal metastable switching dynamics in finite systems. Furthermore, we establish a correspondence (q↔N) between this model and a mean-field SU(N) quantum spin system with quadratic and cubic interactions. This \"social-quantum\" correspondence suggests a representation-theoretic description for classifying symmetry-broken macrostates and offers an interpretive link between quantum mean-field phase structure and opinion stratification.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024107"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018288","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

Fundamental scaling constraints for equilibrium molecular computing. 平衡分子计算的基本尺度约束。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/x9sw-h1rh

Erin Crawley, Qian-Ze Zhu, Michael P Brenner

引用次数: 0

Constrained interactions and sublinear multifractality in multiscale systems. 多尺度系统中的约束相互作用和次线性多重分形。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/vnl1-v81t

Madhur Mangalam, Damian G Kelty-Stephen

{"title":"Constrained interactions and sublinear multifractality in multiscale systems.","authors":"Madhur Mangalam, Damian G Kelty-Stephen","doi":"10.1103/vnl1-v81t","DOIUrl":"https://doi.org/10.1103/vnl1-v81t","url":null,"abstract":"Multifractal formalisms characterize complex interactions across scales in natural and behavioral systems. They capture an excess form of power-law scaling beyond the single power-law relationship between fluctuation and scale in monofractality. Because monofractality fits neatly within the general linear model via fractional integration, multifractality can provide evidence of nonlinear correlations across scales. That is, multifractality might reflect variability exceeding the correlations articulable by the best linear model. The classic expectation under nonlinear correlations across scales is that multifractal spectra for the original series, Δα_{orig}, will show statistically significantly greater width than multifractal spectrum widths for linear surrogates, Δα_{surr}, yielding large positive t statistics, t_{MF}. Thus, Δα_{orig}≫Δα_{surr} supports the conclusion of nonlinear correlations across scales consistent with multiplicative cascade dynamics. By contrast, the interpretation of sublinear multifractality-Δα_{orig}≪Δα_{surr}, and hence negative t_{MF}-has been less clear, including whether it reflects or rules out nonlinear correlations across scales consistent with multiplicative cascades. We identify five distinct mechanisms by which random multiplicative cascades and related linear processes can in principle produce nonlinear correlations with significantly negative t_{MF}, that is, Δα_{orig}≪Δα_{surr}, and we characterize which mechanisms do so robustly under stringent surrogate-testing protocols. We show how various nonmultiplicative constraints on the nonlinear correlations across scales of a multiplicative cascade might produce sublinear multifractality. These constraints may serve as analogues to the physical limits characteristic of homeostatic regulation and feedback control in complex systems. Altogether, this framework builds expectations for how cascade dynamics collaborate with regulatory processes in physics, biology, and engineered systems.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024215"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018418","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

Magnetic compression and solid-liquid phase transition of current-carrying conductors measured by photon Doppler velocimetry. 光子多普勒测速法测量载流导体的磁压缩和固液相变。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/c1m7-qfbf

A W Klemmer, S E Kreher, T M Hutchinson, E P Yu, T J Awe, C L Rousculp, D H Dolan, B T Hutsel, K C Yates, K J Swanson, J J Iratcabal, A Dahal, B S Bauer

引用次数: 0

Performance evaluation of variational quantum eigensolver and quantum dynamics algorithms on the advection-diffusion equation. 变分量子特征解算器和量子动力学算法对平流扩散方程的性能评价。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/mr76-1wtz

A Barış Özgüler

{"title":"Performance evaluation of variational quantum eigensolver and quantum dynamics algorithms on the advection-diffusion equation.","authors":"A Barış Özgüler","doi":"10.1103/mr76-1wtz","DOIUrl":"https://doi.org/10.1103/mr76-1wtz","url":null,"abstract":"Near-term quantum algorithms are a promising route to solving partial differential equations, but gauging their true potential requires separating algorithmic performance from sampling and hardware noise. We benchmark a ground-state variational quantum eigensolver (VQE), cast as a variational quantum linear solver, against the Trotterization, variational quantum imaginary time evolution, and adaptive variational quantum dynamics simulation methods applied to the one-dimensional advection-diffusion equation in the recent quantum-dynamics study by Alipanah et al. [Phys. Rev. Res. 7, 043318 (2025)2643-156410.1103/ndc3-bdwt] at matched grid and problem size. On a noiseless state-vector simulator the N=4 VQE drives the final-time infidelity to a numerical floor (∼10^{-14}) once the depth reaches L≈5, an algorithmic ceiling set by exact expectation values. Evaluating the same solver with a finite number S of measurement shots, still without hardware noise, makes the infidelity sampling limited, following 1-f≈c/S (a best-case readout-sampling estimate, with the solution's signs assumed known), providing a regime-matched comparison with the shot-based emulator of Alipanah et al. and explaining the gap to their noisy hardware runs (>10^{-1}). The benchmark thus decomposes the near-term error budget into algorithmic, sampling, and hardware contributions, with a matched-depth resource comparison. The formulation applies without modification across N=4,5,6 qubits and to a two-dimensional (eight-qubit, 16×16) problem evolved to t=1, where the state-vector VQE holds a ∼10^{-7} algorithmic-ceiling infidelity against the sampling-limited ∼10^{-5} of the corresponding shot-based simulation, a difference of measurement regime rather than algorithmic superiority.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-2","pages":"025306"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018441","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

Far tails of the biased continuous-time random-walk model in the short-time limit. 有偏连续时间随机漫步模型在短时间限制下的远尾。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/pn9s-lgxx

Wanli Wang, Kaixin Zhang, Yuda Cheng

引用次数: 0

Emergence of minimal chimera in uncoupled oscillators under common frequency-modulated driving: Theory and experiment. 共调频驱动下解耦振荡器中极小嵌合体的产生：理论与实验。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/cd5n-fr86

Debabrata Biswas, Tanmoy Banerjee

{"title":"Emergence of minimal chimera in uncoupled oscillators under common frequency-modulated driving: Theory and experiment.","authors":"Debabrata Biswas, Tanmoy Banerjee","doi":"10.1103/cd5n-fr86","DOIUrl":"https://doi.org/10.1103/cd5n-fr86","url":null,"abstract":"We report the experimental realization of minimal chimera states in a system of three uncoupled oscillators driven solely by frequency-modulated forcing. Unlike conventional scenarios where chimera states emerge due to interactions among oscillators, here the coexistence of coherent and incoherent dynamics arises entirely from a common external modulation of a system parameter. By tuning the modulation amplitude and frequency, the system exhibits transitions between global synchronization, global incoherence, and minimal chimera states. The stability of these regimes is quantified using the maximal Lyapunov exponent, while a synchronization order parameter is employed to characterize the degree of coherence. A systematic exploration of the parameter space reveals well-defined regions associated with distinct dynamical behaviors. To provide analytical understanding, we employ a phase-reduction approach and derive the corresponding phase dynamics, which elucidate the mechanisms underlying phase locking and desynchronization. The robustness of the proposed mechanism is further demonstrated in a time-delayed chaotic system. Finally, experimental results obtained from an electronic circuit realization confirm the emergence of minimal chimera states under frequency-modulated driving. These findings establish external modulation as a viable route to chimera formation without coupling, offering a unique perspective on collective dynamics in driven nonlinear systems.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024209"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018460","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