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Exact diffusion coefficient of self-gravitating Brownian particles in two dimensions

Chavanis, P. H. - In: The European Physical Journal B - Condensed Matter and … 57 (2007) 4, pp. 391-409

We derive the exact expression of the diffusion coefficient of a self-gravitating Brownian gas in two dimensions. Our formula generalizes the usual Einstein relation for a free Brownian motion to the context of two-dimensional gravity. We show the existence of a critical temperature T<Subscript>c</Subscript> at which...</subscript>

Persistent link: https://www.econbiz.de/10009283142

Noise-controlled slow–fast oscillations in predator–prey models with the Beddington functional response

Mankin, R.; Laas, T.; Soika, E.; Ainsaar, A. - In: The European Physical Journal B - Condensed Matter and … 59 (2007) 2, pp. 259-269

The influence of environmental fluctuations (modeled as a multiplicative dichotomous noise) on predator … of the system parameters, variations of noise amplitude or correlation time can cause transitions of the mean field from … occurrence of such a phenomenon are found and illustrated by phase diagrams. Implications of the results on the colored-noise …

Persistent link: https://www.econbiz.de/10009283147

Polymers with self-avoiding interaction in random medium: a localization-delocalization transition

Goldschmidt, Y.Y.; Shiferaw, Y. - In: The European Physical Journal B - Condensed Matter and … 32 (2003) 1, pp. 87-95

Persistent link: https://www.econbiz.de/10009281207

Langevin dynamics of financial systems: A second-order analysis

Canessa, E. - In: The European Physical Journal B - Condensed Matter and … 22 (2001) 1, pp. 123-127

Persistent link: https://www.econbiz.de/10009281234

Active Brownian motion models and applications to ratchets

Fiasconaro, A.; Ebeling, W.; Gudowska-Nowak, E. - In: The European Physical Journal B - Condensed Matter and … 65 (2008) 3, pp. 403-414

Persistent link: https://www.econbiz.de/10009281401

Pinning of cracks in two-dimensional disordered media

Rosti, J.; Salminen, L.I.; Seppälä, E.T.; Alava, M.J.; … - In: The European Physical Journal B - Condensed Matter and … 19 (2001) 2, pp. 259-263

Persistent link: https://www.econbiz.de/10009282641

Multifractal critical phenomena in traffic and economic processes

Bershadskii, A. - In: The European Physical Journal B - Condensed Matter and … 11 (1999) 2, pp. 361-364

Multifractal critical phenomena with infinite-temperature critical point and with complex coexistence of the infinite and finite temperature critical points are considered and it is shown that strange attractors generated by cascades of period-doubling bifurcations (Feigenbaum scenario) as well...

Persistent link: https://www.econbiz.de/10010992538

Brownian rotation of classical spins: dynamical equations for non-bilinear spin-environment couplings

García-Palacios, J. - In: The European Physical Journal B - Condensed Matter and … 11 (1999) 2, pp. 293-308

Dynamical equations for a classical spin interacting with the surrounding medium are derived by means of the formalism of the oscillator-bath environment. The bilinear-coupling treatment of Jayannavar (Z. Phys. B <Emphasis Type="Bold">82, 153 (1991)) is extended to couplings that depend arbitrarily on the spin...</emphasis>

Persistent link: https://www.econbiz.de/10010992879

Brownian rotation of classical spins: dynamical equations for non-bilinear spin-environment couplings

García-Palacios, J. - In: The European Physical Journal B - Condensed Matter and … 11 (1999) 2, pp. 293-308

Persistent link: https://www.econbiz.de/10009325200

Quantum Brownian motion on potential surfaces coupled via tunneling in an external electric field[-2mm]

Thrapsaniotis, E.G. - In: The European Physical Journal B - Condensed Matter and … 22 (2001) 2, pp. 239-247

Persistent link: https://www.econbiz.de/10009280363