115 citations · 744 across the 44 of their papers we have counts for
4 papers · 1 filter
Characteristic times in the standard map
Mirella Harsoula, Kostas Karamanos, George Contopoulos
We study and compare three characteristic times of the standard map, the Lyapunov time t_L, the Poincare recurrence time t_r and the stickiness (or escape) time t_{st}. The Lyapuno…
Highlights of chaos research
George Contopoulos
We describe some highlights in the theory of chaos, that started with Poincare (1899). Generic systems have both ordered and chaotic domains. Chaos appears mainly near un- stable p…
Global and Local diffusion in the Standard Map
Mirella Harsoula, George Contopoulos
We study the global and the local transport and diffusion in the case of the standard map, by calculating the diffusion exponent . In the global case we find that the mean diffu…
Origin of chaos near three-dimensional quantum vortices: A general Bohmian theory
Athanasios C. Tzemos, Christos Efthymiopoulos, George Contopoulos
We provide a general theory for the structure of the quantum flow near 3-d nodal lines, i.e. one-dimensional loci where the 3-d wavefunction becomes equal to zero. In suitably defi…