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The eigenvalues and eigenvectors of the connectivity matrix of complex networks contain information about its topology and its collective behavior. In particular, the spectral density $\rho(\lambda)$ of this matrix reveals important network…

适应与自组织系统 · 物理学 2009-11-10 M. A. M. de Aguiar , Y. Bar-Yam

Although real-world complex systems typically interact through sparse and heterogeneous networks, analytic solutions of their dynamics are limited to models with all-to-all interactions. Here, we solve the dynamics of a broad range of…

无序系统与神经网络 · 物理学 2025-01-28 Fernando L. Metz

We discuss the decay rates of chaotic quantum systems coupled to noise. We model both the Hamiltonian and the system-noise coupling by random $N \times N$ Hermitian matrices, and study the spectral properties of the resulting Lindblad…

量子物理 · 物理学 2019-12-11 Tankut Can , Vadim Oganesyan , Dror Orgad , Sarang Gopalakrishnan

Recent advances in AdS/CFT holography have suggested that the near-horizon dynamics of black holes can be described by random matrix systems. We study how the energy spectrum of a system with a generic random Hamiltonian matrix affects its…

高能物理 - 理论 · 物理学 2022-04-12 Krishan Saraswat , Niayesh Afshordi

Stochastic dynamics on sparse graphs and disordered systems often lead to complex behaviors characterized by heterogeneity in time and spatial scales, slow relaxation, localization, and aging phenomena. The mathematical tools and…

无序系统与神经网络 · 物理学 2025-06-05 Mattia Tarabolo , Luca Dall'Asta

We study the dynamics of randomly connected networks composed of binary Boolean elements and those composed of binary majority vote elements. We elucidate their differences in both sparsely and densely connected cases. The quickness of…

无序系统与神经网络 · 物理学 2013-03-06 Shun-ichi Amari , Hiroyasu Ando , Taro Toyoizumi , Naoki Masuda

High dimensional random dynamical systems are ubiquitous, including -- but not limited to -- cyber-physical systems, daily return on different stocks of S&P 1500 and velocity profile of interacting particle systems around McKeanVlasov…

统计理论 · 数学 2023-10-17 Muhammad Abdullah Naeem , Amir Khazraei , Miroslav Pajic

Attractive interaction between fermions can lead to pairing and superfluidity in an optical lattice. In contrast to the `continuum', on a lattice the trap induced density variation can generate a non monotonic profile of the pairing…

强关联电子 · 物理学 2015-06-18 Sanjoy Datta , Viveka Nand Singh , Pinaki Majumdar

We use random matrix theory to study the spectrum of random geometric graphs, a fundamental model of spatial networks. Considering ensembles of random geometric graphs we look at short range correlations in the level spacings of the…

物理与社会 · 物理学 2017-06-08 Carl P. Dettmann , Orestis Georgiou , Georgie Knight

Methods for understanding classical disordered spin systems with interactions conforming to some idealized graphical structure are well developed. The equilibrium properties of the Sherrington-Kirkpatrick model, which has a densely…

无序系统与神经网络 · 物理学 2013-05-29 Jack Raymond , David Saad

The full spectrum of transfer matrices of the general eight-vertex model on a square lattice is obtained by numerical diagonalization. The eigenvalue spacing distribution and the spectral rigidity are analyzed. In non-integrable regimes we…

凝聚态物理 · 物理学 2009-10-28 Hendrik Meyer , Jean-Christian Anglès d'Auriac , Henrik Bruus

We analyse the equilibrium behaviour and non-equilibrium dynamics of sparse Boolean networks with self-interactions that evolve according to synchronous Glauber dynamics. Equilibrium analysis is achieved via a novel application of the…

无序系统与神经网络 · 物理学 2022-10-19 Christian John Hurry , Alexander Mozeika , Alessia Annibale

We propose a novel class of network models for temporal dyadic interaction data. Our goal is to capture a number of important features often observed in social interactions: sparsity, degree heterogeneity, community structure and…

机器学习 · 统计学 2018-10-30 Xenia Miscouridou , François Caron , Yee Whye Teh

In this letter we announce rigorous results on the phenomenon of aging in the Glauber dynamics of the random energy model and their relation to Bouchaud's 'REM-like' trap model. We show that, below the critical temperature, if we consider a…

无序系统与神经网络 · 物理学 2019-05-15 G. Ben Arous , A. Bovier , V. Gayrard

The entanglement between two arbitrary subsystems of random pure states is studied via properties of the density matrix's partial transpose, $\rho_{12}^{T_2}$. The density of states of $\rho_{12}^{T_2}$ is close to the semicircle law when…

量子物理 · 物理学 2018-07-23 Udaysinh T. Bhosale , Steven Tomsovic , Arul Lakshminarayan

We study spectral and steady-state properties of generic Markovian dissipative systems described by quadratic fermionic Liouvillian operators of the Lindblad form. The Hamiltonian dynamics is modeled by a generic random quadratic operator,…

统计力学 · 物理学 2023-10-16 João Costa , Pedro Ribeiro , Andrea de Luca , Tomaž Prosen , Lucas Sá

In this work the diffusion in the quenched trap model with diverging mean waiting times is examined. The approach of randomly stopped time is extensively applied in order to obtain asymptotically exact representation of the disorder…

统计力学 · 物理学 2020-07-21 Stanislav Burov

The entanglement and localization in eigenstates of strongly chaotic subsystems are studied as a function of their interaction strength. Excellent measures for this purpose are the von-Neumann entropy, Havrda-Charv{\' a}t-Tsallis entropies,…

We study the structural characteristics of complex networks using the representative eigenvectors of the adjacent matrix. The probability distribution function of the components of the representative eigenvectors are proposed to describe…

物理与社会 · 物理学 2015-05-30 Guimei Zhu , Huijie Yang , Chuanyang Yin , Baowen Li

The stochastic motion in a nonhomogeneous medium with traps is studied and diffusion properties of that system are discussed. The particle is subjected to a stochastic stimulation obeying a general L\'evy stable statistics and experiences…

统计力学 · 物理学 2015-06-11 Tomasz Srokowski