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Roughness fluctuations, roughness exponents and the universality class of ballistic deposition
Aarão Reis, F.D.A. - In: Physica A: Statistical Mechanics and its Applications 364 (2006) C, pp. 190-196
In order to estimate roughness exponents of interface growth models, we propose the calculation of effective exponents … from the roughness fluctuation σ in the steady state. We compare the finite-size behavior of these exponents and the ones … calculated from the average roughness 〈w2〉 for two models in the 2+1-dimensional Kardar–Parisi–Zhang (KPZ) class and for a model …
Persistent link: https://www.econbiz.de/10011063872
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Deterministic KPZ model for stromatolite laminae
Batchelor, M.T; Burne, R.V; Henry, B.I; Watt, S.D - In: Physica A: Statistical Mechanics and its Applications 282 (2000) 1, pp. 123-136
The deterministic variant of the Kardar–Parisi–Zhang equation for the evolution of a growing interface is used to model …
Persistent link: https://www.econbiz.de/10010588535
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Fixing the fixed-point system—Applying Dynamic Renormalization Group to systems with long-range interactions
Katzav, Eytan - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 8, pp. 1750-1755
In this paper, a mode of using the Dynamic Renormalization Group (DRG) method is suggested in order to cope with inconsistent results obtained when applying it to a continuous family of one-dimensional nonlocal models. The key observation is that the correct fixed-point dynamical system has to...
Persistent link: https://www.econbiz.de/10011058975
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Interface depinning and directed polymer in quenched noises
Lee, Changhan; Kim, Jin Min - In: Physica A: Statistical Mechanics and its Applications 316 (2002) 1, pp. 144-152
Interface pinning–depinning transition in quenched random media is studied by investigating a simple directed polymer … over all slope of the interface and the reduced force, respectively. The coefficient λ of the KPZ nonlinear term is … proportional to −v and it approaches zero as F→Fc. We find that the roughness exponent α=1.00±0.02 in d=1+1 and α=0.92±0.05 in d=2 …
Persistent link: https://www.econbiz.de/10011059334
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Phase transition of directed polymer in random potentials on 4+1 dimensions
Kim, Jin Min - In: Physica A: Statistical Mechanics and its Applications 270 (1999) 3, pp. 335-341
Finite-temperature-directed polymer in random potentials is described by a transfer matrix method. On 4+1 dimensions, the evidence for a finite-temperature phase transition is found at Tc≈0.18, where the free energy fluctuation grows logarithmically as a function of time t. When T⪡Tc, the...
Persistent link: https://www.econbiz.de/10011060544
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Mapping a depinning transition to polynuclear growth
Szabó, G.J.; Alava, M.J. - In: Physica A: Statistical Mechanics and its Applications 301 (2001) 1, pp. 17-28
We develop a phenomenological mapping between submonolayer polynuclear growth (PNG) and the interface dynamics at and …. The morphology of the still-active and pinned configurations and the interface velocity are compared to the PNG picture …. The interface mean height scales as erf(t). …
Persistent link: https://www.econbiz.de/10011061033
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Universal scaling functions and quantities in percolation models
Hu, Chin-Kun; Chen, Jau-Ann; Lin, Chai-Yu - In: Physica A: Statistical Mechanics and its Applications 266 (1999) 1, pp. 27-34
We briefly review recent work on universal finite-size scaling functions (UFSSFs) and quantities in percolation models. The topics under discussion include: (a) UFSSFs for the existence probability (also called crossing probability) Ep, the percolation probability P, and the probability Wn of...
Persistent link: https://www.econbiz.de/10010664916
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Random walk to freedom: The time of effusion
Levin, Yan; Idiart, Marco A.; Arenzon, Jeferson J. - In: Physica A: Statistical Mechanics and its Applications 354 (2005) C, pp. 95-100
The problem of effusion is studied using Monte Carlo simulations and scaling analysis. Particles confined to the interior of a container undergo a random walk with step size δ. If a hole is opened in one of the container walls, an outgoing diffusive current of particles will exit through it....
Persistent link: https://www.econbiz.de/10011060514
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Nonparametric estimation of the derivatives of a density by the method of wavelet for mixing sequences
Hosseinioun, N.; Doosti, H.; Nirumand, H. - In: Statistical Papers 53 (2012) 1, pp. 195-203
Persistent link: https://www.econbiz.de/10010539380
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Correlation between Journal Impact Factor and Citation Performance: An experimental study
Finardi, Ugo - In: Journal of Informetrics 7 (2013) 2, pp. 357-370
Since its introduction, the Journal Impact Factor has probably been the most extensively adopted bibliometric indicator. Notwithstanding its well-known strengths and limits, it is still widely misused as a tool for evaluation, well beyond the purposes it was intended for. In order to shed...
Persistent link: https://www.econbiz.de/10011039392