Showing 41 - 50 of 304
We apply a new statistical complete boson–fermion model (CBFM) to describe superconductivity with arbitrary departure from the perfect two-electron (2e) and two-hole (2h) Cooper pair (CP) symmetry to which BCS theory is restricted. The model is complete in that it accounts for both 2h and 2e...
Persistent link: https://www.econbiz.de/10010589776
We propose a new cluster algorithm for the Baxter–Wu model that significantly reduces critical slowing down. We examine the behavior of the created clusters as we vary the temperature and then specify dynamic exponents. Comparison is made with the Metropolis algorithm and with the other...
Persistent link: https://www.econbiz.de/10010589980
The car following models are extended to take into account the characteristics of different vehicles. The characteristic of each car can be included in the parameter of the dimensionless delay time. The traffic behavior is investigated, analytically and numerically, under the periodic boundary...
Persistent link: https://www.econbiz.de/10010590532
We introduce a general stochastic model for the spread of rumours, and derive mean-field equations that describe the dynamics of the model on complex social networks (in particular, those mediated by the Internet). We use analytical and numerical solutions of these equations to examine the...
Persistent link: https://www.econbiz.de/10010590700
Nonequilibrium phase transitions between an active and an absorbing state are found in models of populations, epidemics …
Persistent link: https://www.econbiz.de/10010590751
We discuss the critical behavior of nonequilibrium anisotropic systems, particularly the driven lattice gas and its …
Persistent link: https://www.econbiz.de/10010590779
The traffic states are investigated for the noisy traffic flow in the presence of a bottleneck under the open boundary condition. The phase diagrams of the different kinds of congested traffic are presented for different values of sensitivity (the inverse of delay time). It is shown that the...
Persistent link: https://www.econbiz.de/10010591305
Wonderland, a compact, integrated economic, demographic and environmental model, is investigated using methods developed for studying critical phenomena. Simulation results show the parameter space separates into two phases, one of which contains the property of long term, sustainable...
Persistent link: https://www.econbiz.de/10010591541
We analyse the financial crash in 2008 for different financial markets from the point of view of log-periodic function model. In particular, we consider Dow Jones index, DAX index and Hang Seng index. We shortly discuss the possible relation of the theory of critical phenomena in physics to...
Persistent link: https://www.econbiz.de/10010591762
with extreme fluctuations and first-order multifractal phase transitions. Since the presence of both of these phenomena is …
Persistent link: https://www.econbiz.de/10010586430