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Gravitational structure formation, the cosmological problem and statistical physics

Pietronero, L.; Labini, F. Sylos - In: The European Physical Journal B - Condensed Matter and … 50 (2006) 1, pp. 285-289

Models of structure formation in the universe postulate that matter distributions observed today in galaxy catalogs arise, through a complex non-linear dynamics, by gravitational evolution from a very uniform initial state. Dark matter plays the central role of providing the primordial density...

Persistent link: https://www.econbiz.de/10009280580

Dynamics of a FitzHugh-Nagumo system subjected to autocorrelated noise

Valenti, D.; Augello, G.; Spagnolo, B. - In: The European Physical Journal B - Condensed Matter and … 65 (2008) 3, pp. 443-451

Persistent link: https://www.econbiz.de/10009280587

Stochastic resonance on paced genetic regulatory small-world networks: effects of asymmetric potentials

Perc, M. - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 147-153

Persistent link: https://www.econbiz.de/10009280639

Modelling disorder: the cases of wetting and DNA denaturation

Ares, S.; Sánchez, A. - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 253-258

We study the effect of the composition of the genetic sequence on the melting temperature of double stranded DNA, using some simple analytically solvable models proposed in the framework of the wetting problem. We review previous work on disordered versions of these models and solve them when...

Persistent link: https://www.econbiz.de/10009280646

Diffusion in flashing periodic potentials

Spagnolo, B.; Dubkov, A. - In: The European Physical Journal B - Condensed Matter and … 50 (2006) 1, pp. 299-303

-reversible noise is analyzed. The calculation of the effective diffusion coefficient is reduced to the mean first passage time problem … supersymmetric potential modulated by: (i) an external white Gaussian noise and (ii) a Markovian dichotomous noise. For both cases … in the absence of thermal noise. For rectangular potential the diffusion slows down, for all parameters of noise and of …

Persistent link: https://www.econbiz.de/10009280668

Stochastic resonance in finite arrays of bistable elements with local coupling

Morillo, M.; Gómez-Ordóñez, J.; Casado, J. M.; … - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 59-64

Persistent link: https://www.econbiz.de/10009280683

Accounting for the energies and entropies of kinesin’s catalytic cycle

Bier, M. - In: The European Physical Journal B - Condensed Matter and … 65 (2008) 3, pp. 415-418

Persistent link: https://www.econbiz.de/10009280696

Energy diffusion controlled reaction rate of reacting particle driven by broad-band noise

Deng, M. L.; Zhu, W. Q. - In: The European Physical Journal B - Condensed Matter and … 59 (2007) 3, pp. 391-397

The energy diffusion controlled reaction rate of a reacting particle with linear weak damping and broad-band noise … oscillators under broad-band noise excitation using generalized harmonic functions is briefly introduced. Then, the reaction rate … of the classical Kramers' reacting model with linear weak damping and broad-band noise excitation is investigated by …

Persistent link: https://www.econbiz.de/10009280840

Nonlinear mean field Fokker-Planck equations. Application to the chemotaxis of biological populations

Chavanis, P. H. - In: The European Physical Journal B - Condensed Matter and … 62 (2008) 2, pp. 179-208

We study a general class of nonlinear mean field Fokker-Planck equations in relation with an effective generalized thermodynamical (E.G.T.) formalism. We show that these equations describe several physical systems such as: chemotaxis of bacterial populations, Bose-Einstein condensation in the...

Persistent link: https://www.econbiz.de/10009280941

Exactly solvable reaction diffusion models on a Cayley tree

Matin, L. F.; Aghamohammadi, A.; Khorrami, M. - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 243-246

The most general reaction-diffusion model on a Cayley tree with nearest-neighbor interactions is introduced, which can be solved exactly through the empty-interval method. The stationary solutions of such models, as well as their dynamics, are discussed. Concerning the dynamics, the spectrum of...

Persistent link: https://www.econbiz.de/10009280951