Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- Charles UniversityCZ2.3k papers
- Institute for High Energy PhysicsES2.3k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.2k papers
- The Ohio State UniversityUS2.1k papers
- Universidad Autónoma de MadridES2.1k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- European Organization for Nuclear ResearchCH2.1k papers
- University of Wisconsin–MadisonUS2.1k papers
- Joint Institute for Nuclear ResearchRU2k papers
29 papers · 2 filters
Particle Systems with Stochastic Passing
I. Ispolatov, P. L. Krapivsky
We study a system of particles moving on a line in the same direction. Passing is allowed and when a fast particle overtakes a slow particle, it acquires a new velocity drawn from…
Economic Fluctuations and Diffusion
Vasiliki Plerou, Parameswaran Gopikrishnan, Luis. A. Nunes Amaral +2
Stock price changes occur through transactions, just as diffusion in physical systems occurs through molecular collisions. We systematically explore this analogy and quantify the r…
Power-law Distribution of Family Names in Japanese Societies
Sasuke Miyazima, Youngki Lee, Tomomasa Nagamine +1
We study the frequency distribution of family names. From a common data base, we count the number of people who share the same family name. This is the size of the family. We find…
Sleep-Wake Differences in Scaling Behavior of the Human Heartbeat: Analysis of Terrestrial and Long-Term Space Flight Data
Plamen Ch. Ivanov, Armin Bunde, Luís A. N. Amaral +5
We compare scaling properties of the cardiac dynamics during sleep and wake periods for healthy individuals, cosmonauts during orbital flight, and subjects with severe heart diseas…
Effective Field Theory of the Zero-Temperature Triangular-Lattice Antiferromagnet: A Monte Carlo Study
Hui Yin, Bulbul Chakraborty, Nicholas Gross
Using a Monte Carlo coarse-graining technique introduced by Binder et al., we have explicitly constructed the continuum field theory for the zero-temperature triangular Ising antif…
Scale Invariance and Lack of Self-Averaging in Fragmentation
P. L. Krapivsky, I. Grosse, E. Ben-Naim
We derive exact statistical properties of a class of recursive fragmentation processes. We show that introducing a fragmentation probability 0<p<1 leads to a purely algebraic size…
Dependence of Conductance on Percolation Backbone Mass
Gerald Paul, Sergey V. Buldyrev, Nikolay V. Dokholyan +4
On two-dimensional percolation clusters at the percolation threshold, we study , the average conductance of the backbone, defined by two points separated by Euclidean d…
Systems with Correlations in the Variance: Generating Power-Law Tails in Probability Distributions
Boris Podobnik, Plamen Ch. Ivanov, Youngki Lee +2
We study how the presence of correlations in physical variables contributes to the form of probability distributions. We investigate a process with correlations in the variance gen…
Sliding blocks with random friction and absorbing random walks
A. R. Lima, Cristian F. Moukarzel, I. Grosse +1
With the purpose of explaining recent experimental findings, we study the distribution of distances traversed by a block that slides on an inclined plane and stops due t…
Shock-Like Dynamics of Inelastic Gases
E. Ben-Naim, S. Y. Chen, G. D. Doolen +1
We provide a simple physical picture which suggests that the asymptotic dynamics of inelastic gases in one dimension is independent of the degree of inelasticity. Statistical chara…
Multiscaling in Infinite Dimensional Collision Processes
E. Ben-Naim, P. L. Krapivsky
We study relaxation properties of two-body collisions in infinite spatial dimension. We show that this process exhibits multiscaling asymptotic behavior as the underlying distribut…
Scaling of the distribution of shortest paths in percolation
Nikolay V. Dokholyan, Youngki Lee, Sergey V. Buldyrev +3
We present a scaling hypothesis for the distribution function of the shortest paths connecting any two points on a percolating cluster which accounts for {\it (i)} the effect of th…
Scaling of the distribution of price fluctuations of individual companies
V. Plerou, P. Gopikrishnan, L. A. N. Amaral +2
We present a phenomenological study of stock price fluctuations of individual companies. We systematically analyze two different databases covering securities from the three major…
A review of growing interfaces in quenched disordered media
L. A. Braunstein, R. C. Buceta, A. Diaz-Sanchez +1
We make a review of the two principal models that allows to explain the imbibition of fluid in porous media. These models, that belong to the directed percolation depinning (DPD) u…
Scale-invariant Truncated Lévy Process
Boris Podobnik, Plamen Ch. Ivanov, Youngki Lee +1
We develop a scale-invariant truncated Lévy (STL) process to describe physical systems characterized by correlated stochastic variables. The STL process exhibits Lévy stability for…
A Generalization of Metropolis and Heat-Bath Sampling for Monte Carlo Simulations
Bruce M. Boghosian
For a wide class of applications of the Monte Carlo method, we describe a general sampling methodology that is guaranteed to converge to a specified equilibrium distribution functi…
Ivory Tower Universities and Competitive Business Firms
Vasiliki Plerou, Luis A. Nunes Amaral, Parameswaran Gopikrishnan +2
There is nowadays considerable interest on ways to quantify the dynamics of research activities, in part due to recent changes in research and development (R&D) funding. Here, we s…
Multifractality in Human Heartbeat Dynamics
Plamen Ch. Ivanov, Luís A. Nunes Amaral, Ary L. Goldberger +4
Recent evidence suggests that physiological signals under healthy conditions may have a fractal temporal structure. We investigate the possibility that time series generated by cer…
Scaling of the distribution of fluctuations of financial market indices
Parameswaran Gopikrishnan, Vasiliki Plerou, Luis A. Nunes Amaral +2
We study the distribution of fluctuations over a time scale (i.e., the returns) of the S&P 500 index by analyzing three distinct databases. Database (i) contains approximately…
Capture of the Lamb: Diffusing Predators Seeking a Diffusing Prey
S. Redner, P. L. Krapivsky
We study the capture of a diffusing "lamb" by diffusing "lions" in one dimension. The capture dynamics is exactly soluble by probabilistic techniques when the number of lions is ve…
Dynamics of a Ring of Diffusively Coupled Lorenz Oscillators
Kresimir Josic, C. Eugene Wayne
We study the dynamics of a finite chain of diffusively coupled Lorenz oscillators with periodic boundary conditions. Such rings possess infinitely many fixed states, some of which…
Scaling for the Percolation Backbone
Marc Barthelemy, S. V. Buldyrev, S. Havlin +1
We study the backbone connecting two given sites of a two-dimensional lattice separated by an arbitrary distance in a system of size . We find a scaling form for the average…
The statistical properties of the volatility of price fluctuations
Yanhui Liu, Parameswaran Gopikrishnan, Pierre Cizeau +3
We study the statistical properties of volatility---a measure of how much the market is likely to fluctuate. We estimate the volatility by the local average of the absolute price c…
Coarsening in a Driven Ising Chain with Conserved Dynamics
V. Spirin, P. L. Krapivsky, S. Redner
We study the low-temperature coarsening of an Ising chain subject to spin-exchange dynamics and a small driving force. This dynamical system reduces to a domain diffusion process,…