Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Contoyiannis, Y. F."'
Autor:
Tsopelakou, A. -M., Margazoglou, G., Contoyiannis, Y. F., Kalozoumis, P. A., Diakonos, F. K., Fytas, N. G.
We propose a method for calculating the isothermal critical exponent $\delta$ in Ising systems undergoing a second-order phase transition. It is based on the calculation of the mean magnetization time series within a small connected domain of a latti
Externí odkaz:
http://arxiv.org/abs/1601.06306
Publikováno v:
Nat. Hazards Earth Syst. Sci., 13, 125-139, 2013
The new field of complex systems supports the view that a number of systems arising from disciplines as diverse as physics, biology, engineering, and economics may have certain quantitative features that are intriguingly similar. The earth is a livin
Externí odkaz:
http://arxiv.org/abs/1210.4804
Autor:
Contoyiannis, Y. F., Nomicos, C., Kopanas, J., Antonopoulos, G., Contoyianni, L., Eftaxias, K.
Electromagnetic (EM) emissions in a wide frequency spectrum ranging from kHz to MHz are produced by opening cracks, which can be considered as the so-called precursors of general fracture. We emphasize that the MHz radiation appears earlier than the
Externí odkaz:
http://arxiv.org/abs/0905.2782
Autor:
Contoyiannis, Y. F., Diakonos, F. K.
We present a fixed energy sandpile (FES) model which, by increasing the initial energy,undergoes, at the level of individual configurations, a discontinuous transition.The model is obtained by modifying the toppling procedure in the BTW rules: the en
Externí odkaz:
http://arxiv.org/abs/nlin/0601045
Publikováno v:
Nucl.Phys. A761 (2005) 149-161
A detailed study of correlated scalars, produced in collisions of nuclei and associated with the $\sigma$-field fluctuations, $(\delta \sigma)^2= < \sigma^2 >$, at the QCD critical point (critical fluctuations), is performed on the basis of a critica
Externí odkaz:
http://arxiv.org/abs/hep-ph/0505185
Publikováno v:
Proc. 10th International Workshop on Multiparticle Production, Crete, Greece 8-15 June 2002. World Scientific, p.190-200, Edited by: N. G. Antoniou, F. K. Diakonos and C. N. Ktorides
We investigate the possibility to observe the QCD critical point in A+A collisions at the SPS. Guided by the QCD phase diagram expressed in experimentally accessible variables we suggest that the process C+C at 158 GeV/n freezes out very close to the
Externí odkaz:
http://arxiv.org/abs/hep-ph/0502160
A detailed study of correlated scalars, produced in collisions of nuclei and associated with the $\sigma$-field fluctuations, $(\delta \sigma)^2= < \sigma^2 >$, at the QCD critical point (critical fluctuations), is performed on the basis of a critica
Externí odkaz:
http://arxiv.org/abs/hep-ph/0307153
Publikováno v:
Nucl.Phys. A693 (2001) 799-824
A theoretical scheme which relates multiparticle states generated in ultrarelativistic nuclear collisions to a QCD phase transition is considered in the framework of the universality class provided by the 3-D Ising model. Two different evolution scen
Externí odkaz:
http://arxiv.org/abs/hep-ph/0012164
Publikováno v:
Phys.Rev. E62 (2000) 3125-3134
We investigate the geometry of a critical system undergoing a second order thermal phase transition. Using a local description for the dynamics characterizing the system at the critical point T=Tc, we reveal the formation of clusters with fractal geo
Externí odkaz:
http://arxiv.org/abs/hep-ph/0008047
A critical point of second order, belonging to the universality class of the 3d Ising model, has recently been advocated as a strong candidate for the critical behaviour (at high temperatures) of QCD with non-zero quark masses. The implications of th
Externí odkaz:
http://arxiv.org/abs/hep-ph/9902455