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Gallavottia, G. - In: The European Physical Journal B - Condensed Matter and … 64 (2008) 3, pp. 315-320

Persistent link: https://www.econbiz.de/10009281079

A quasi-elastic regime for vibrated granular gases

Aumaître, S.; Alastuey, A.; Fauve, S. - In: The European Physical Journal B - Condensed Matter and … 54 (2006) 2, pp. 263-266

Using simple scaling arguments and two-dimensional numerical simulations of a granular gas excited by vibrating one of the container boundaries, we study a double limit of small 1-r and large L, where r is the restitution coefficient and L the size of the container. We show that if the particle...

Persistent link: https://www.econbiz.de/10009281087

Statistics of the gravitational force in various dimensions of space: from Gaussian to Lévy laws

Chavanis, P. H. - In: The European Physical Journal B - Condensed Matter and … 70 (2009) 3, pp. 413-433

Persistent link: https://www.econbiz.de/10009281109

Critical comparison of several order-book models for stock-market fluctuations

Slanina, F. - In: The European Physical Journal B - Condensed Matter and … 61 (2008) 2, pp. 225-240

Far-from-equilibrium models of interacting particles in one dimension are used as a basis for modelling the stock-market fluctuations. Particle types and their positions are interpreted as buy and sel orders placed on a price axis in the order book. We revisit some modifications of well-known...

Persistent link: https://www.econbiz.de/10009281144

Complex behavior of simple maps with fluctuating delay times

Radons, G.; Yang, H.-L.; Wang, J.; Fu, J.-F. - In: The European Physical Journal B - Condensed Matter and … 71 (2009) 1, pp. 111-119

Persistent link: https://www.econbiz.de/10009281153

Linear response in aging glassy systems, intermittency and the Poisson statistics of record fluctuations

Sibani, P. - In: The European Physical Journal B - Condensed Matter and … 58 (2007) 4, pp. 483-491

We study the intermittent behavior of the energy decay and the linear magnetic response of a glassy system during isothermal aging after a deep thermal quench, using the Edward-Anderson spin glass model as a paradigmatic example. The large intermittent changes in the two observables occur in a...

Persistent link: https://www.econbiz.de/10009281188

Pulse trains propagating through excitable media subjected to external noise

Beato, V.; Engel, H.; Schimansky-Geier, L. - In: The European Physical Journal B - Condensed Matter and … 58 (2007) 3, pp. 323-329

We study the propagation of periodic pulse trains in excitable media exposed to external spatio-temporal noise using … weak noise approximation we find noise-induced transitions in the dispersion relation of pulse trains. We discuss noise …-enhanced propagation of pulse trains within a certain wave-length range caused by external noise of moderate strength. Copyright EDP …

Persistent link: https://www.econbiz.de/10009281206

The role of bistability in stochastic resonance

Borromeo, M.; Marchesoni, F. - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 23-27

Persistent link: https://www.econbiz.de/10009281260

Can a few fanatics influence the opinion of a large segment of a society?

Stauffer, D.; Sahimi, M. - In: The European Physical Journal B - Condensed Matter and … 57 (2007) 2, pp. 147-152

Models that provide insight into how extreme positions regarding any social phenomenon may spread in a society or at the global scale are of great current interest. A realistic model must account for the fact that globalization, internet, and other means of mass communications have given rise to...

Persistent link: https://www.econbiz.de/10009281296

Quantum Brownian motion and the second law of thermodynamics

Kim, ILki; Mahler, Günter - In: The European Physical Journal B - Condensed Matter and … 54 (2006) 3, pp. 405-414

We consider a single harmonic oscillator coupled to a bath at zero temperature. As is well-known, the oscillator then has a higher average energy than that given by its ground state. Here we show analytically that for a damping model with arbitrarily discrete distribution of bath modes and...

Persistent link: https://www.econbiz.de/10009281319