Results 71 to 80 of about 467,640 (194)
Finite size scaling in the local abundances of geographic populations
We analyzed the statistical distribution of intra-specific local abundances for a set North American breeding bird species. We constructed frequency plots for every species and found that they showed long-tail power-law behavior, truncated at an upper ...
Sebastián R Abades, Pablo A Marquet
doaj
Non-universal size dependence of the free energy of confined systems near criticality
The singular part of the finite-size free energy density $f_s$ of the O(n) symmetric $\phi^4$ field theory in the large-n limit is calculated at finite cutoff for confined geometries of linear size L with periodic boundary conditions in 2 < d < 4 ...
D. Danchev +21 more
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We study the ferromagnetic transverse-field Ising model with quenched disorder at $T = 0$ in one and two dimensions by means of stochastic series expansion quantum Monte Carlo simulations using a rigorous zero-temperature scheme.
Calvin Krämer, Jan Alexander Koziol, Anja Langheld, Max Hörmann, Kai Phillip Schmidt
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NONPERTURBATIVE APPROACH TO FINITE-SIZE-SCALING OF THE KONDO EFFECT
The scaling theory of the free magnetic moments in disordered metals is investigated. A nonperturbative approach to the Kondo effect is developed.
Isa Kh. Zharekeshev
doaj
Finite size scaling of the 5D Ising model with free boundary conditions
There has been a long running debate on the finite size scaling for the Ising model with free boundary conditions above the upper critical dimension, where the standard picture gives an L2 scaling for the susceptibility and an alternative theory has ...
P.H. Lundow, K. Markström
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Finite size scaling approach to Anderson localisation
The Anderson localization problem is studied by a new scaling theory of finite systems which has been proved to be powerful for different phase transition problems [1]. In three dimensions, there is a transition at a critical value Wc of the disorder parameter from a region of exponentially localized states to a region of extended states.
Pichard, J., Sarma, G.
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Finite-size effects in roughness distribution scaling
We study numerically finite-size corrections in scaling relations for roughness distributions of various interface growth models. The most common relation, which considers the average roughness $$ as scaling factor, is not obeyed in the steady states of ...
A. L. Barabási +3 more
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An Investigation of Finite Size Scaling
Calculations on finite (or partially finite) systems, such as Monte-Carlo simulations or the diagonalization of a finite transfer matrix, are often extrapolated to the thermodynamic limit by the use of scaling assumptions involving the finite sizes L of the system.
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Tricriticality and finite-size scaling in the triangular Blume-Capel ferromagnet
We report on numerical simulations of the two-dimensional spin-1 Blume-Capel ferromagnet embedded in a triangular lattice. Utilizing a range of Monte Carlo and finite-size scaling techniques, we explore several critical aspects along the crystal field ...
Dimitrios Mataragkas +3 more
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On finite-size spiky strings in AdS 3 × S 3 × T 4 with mixed fluxes
We discuss finite-size corrections to the spiky strings in AdS space which is dual to the long 𝒩 = 4 SYM operators of the form Tr( Δ + J 1 ϕ 1 Δ + J 2 ϕ 2 … Δ + J n ϕ n $$ {\varDelta}_{+}^{J_1}{\phi}_1{\varDelta}_{+}^{J_2}{\phi}_2\dots {\varDelta}_ ...
Sorna Prava Barik +2 more
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