中文
相关论文

相关论文: Analysis on the evolution process of BFW-like mode…

200 篇论文

Explosive percolation in the Achlioptas process, which has attracted much research attention, is known to exhibit a rich variety of critical phenomena that are anomalous from the perspective of continuous phase transitions. Hereby, we show…

统计力学 · 物理学 2023-04-06 Ming Li , Junfeng Wang , Youjin Deng

The sensitivity of a wave field's evolution to small perturbations is of fundamental interest. For chaotic systems, there are two distinct regimes of either exponential or Gaussian overlap decay in time. We develop a semiclassical approach…

混沌动力学 · 物理学 2009-11-07 Nicholas R. Cerruti , Steven Tomsovic

We present a new particle code for modelling the evolution of galaxies. The code is based on a multi-phase description for the interstellar medium (ISM). We included star formation (SF), stellar feedback by massive stars and planetary…

天体物理学 · 物理学 2009-11-11 Stefan Harfst , Christian Theis , Gerhard Hensler

In a physical system, changing parameters such as temperature can induce a phase transition: an abrupt change from one state of matter to another. Analogous phenomena have recently been observed in large language models. Typically, the task…

机器学习 · 计算机科学 2024-05-28 Julian Arnold , Flemming Holtorf , Frank Schäfer , Niels Lörch

Massive stars play a major role not only in stellar evolution but also galactic evolution theory. This is because of their dynamical interaction with binary companions, and because their strong winds and explosive deaths as supernovae…

太阳与恒星天体物理 · 物理学 2023-12-14 Dominic M. Bowman

We present results from an individual particle based model for the collision, coagulation and fragmentation of heavy drops moving in a turbulent flow. Such a model framework can help to bridge the gap between the full hydrodynamic…

流体动力学 · 物理学 2020-01-29 Jens C. Zahnow , Ulrike Feudel

Using the dynamical system theory we show that the Friedmann-Robertson-Walker (FRW) cosmological model with bulk viscous fluid in the presence of cosmological constant is equivalent to a degenerate two dimensional Bogdanov-Takens normal…

广义相对论与量子宇宙学 · 物理学 2020-10-19 Asmaa Abdel Azim , Adel Awad , E. I. Lashin

Understanding what types of phenomena lead to discontinuous phase transitions in the connectivity of random networks is an outstanding challenge. Here we show that a simple stochastic model of graph evolution leads to a discontinuous…

无序系统与神经网络 · 物理学 2015-05-28 Wei Chen , Zhiming Zheng , Raissa M. D'Souza

The limiting behavior of stochastic evolution processes with small noise intensity $\epsilon$ is investigated in distribution-based approach. Let $\mu^{\epsilon}$ be stationary measure for stochastic process $X^{\epsilon}$ with small…

概率论 · 数学 2016-11-23 Lifeng Chen , Zhao Dong , Jifa Jiang , Jianliang Zhai

Four problematic circumstances are considered, involving models which describe dynamical wavefunction collapse toward energy eigenstates, for which it is shown that wavefunction collapse of macroscopic objects does not work properly. In one…

量子物理 · 物理学 2009-11-10 Philip Pearle

We show that simple stochastic models of genome evolution lead to power law asymptotics of protein domain family size distribution. These models, called Birth, Death and Innovation Models (BDIM), represent a special class of balanced…

基因组学 · 定量生物学 2007-05-23 Georgy P. Karev , Yuri I. Wolf , Eugene V. Koonin

The analysis on stability and bifurcations in the macroscopic dynamics exhibited by the system of two coupled large populations comprised of $N$ stochastic excitable units each is performed by studying an approximate system, obtained by…

混沌动力学 · 物理学 2015-06-11 I. Franovic , K. Todorovic , N. Vasovic , N. Buric

This paper considers the behavior of discrete and continuous mathematical models for gene expression in the presence of transcriptional/translational bursting. We treat this problem in generality with respect to the distribution of the…

概率论 · 数学 2015-10-15 M. C. Mackey , M. Tyran-Kamińska , R. Yvinec

We propose a novel finite size scaling analysis for percolation transition observed in complex networks. While it is known that cooperative systems in growing networks often undergo an infinite order transition with inverted…

无序系统与神经网络 · 物理学 2013-11-08 Takehisa Hasegawa , Tomoaki Nogawa , Koji Nemoto

In this paper, we study the statistical evolution of the large-scale structure (LSS), focusing on the joint probability distribution function (PDF) of the coarse-grained cosmic field and its role in constructing effective dynamics. As the…

宇宙学与河外天体物理 · 物理学 2021-10-20 Xin Wang

Phylogenetic comparative methods explore the relationships between quantitative traits adjusting for shared evolutionary history. This adjustment often occurs through a Brownian diffusion process along the branches of the phylogeny that…

统计方法学 · 统计学 2017-01-27 Max R. Tolkoff , Michael L. Alfaro , Guy Baele , Philippe Lemey , Marc A. Suchard

Let $\mathcal{M}$ be a set with $M$ elements, let $\psi :\mathcal{M}\to\mathcal{M}$ be a bijective involution, and let~$\boldsymbol{\mathcal{X}}_{\psi}$ be the set of sequences $(x_1,\dots,x_M)\in\mathcal{M}^M$ with the property that…

数论 · 数学 2026-02-26 Cristian Cobeli , The Nguyen , Alexandru Zaharescu

We scrutinize the anomalies in diffusion observed in an extended long-range system of classical rotors, the HMF model. Under suitable preparation, the system falls into long-lived quasi-stationary states presenting super-diffusion of rotor…

统计力学 · 物理学 2009-11-11 Luis G. Moyano , Celia Anteneodo

The jets of blazars are renowned for their multi-wavelength flares and rapid extreme variability; however, there are still some important unanswered questions about the physical processes responsible for these spectral and temporal changes…

高能天体物理现象 · 物理学 2020-10-30 Y. G. Zheng , S. J. Kang , C. Y. Yang , J. M. Bai

We study Gibbs partition models, also known as composition schemes. Our main results comprehensively describe their phase diagram, including a phase transition from the convergent case described in Stufler (2018, Random Structures \&…

概率论 · 数学 2022-11-22 Benedikt Stufler