3 papers
quant-ph2004
Zeno era and non-decaying subspaces for multilevel Friedrichs model
I. Antoniou, E. Karpov, G. Pronko +1
We study the short-time and medium-time behavior of the survival probability of decaying states in the framework of the -level Friedrichs model. The degenerated and nearly degen…
quant-ph2001
Oscillating decay of an unstable system
I. Antoniou, E. Karpov, G. Pronko +1
We study the short-time and medium-time behavior of the survival probability in the frame of the -level Friedrichs model. The time evolution of an arbitrary unstable initial sta…
physics.class-ph2001
Coarse graining: lessons from simple examples
P. Akritas, I. Antoniou, E. Yarevsky
We assess Coarse Graining by studying different partitions of the phase space of the Baker transformation and the periodic torus automorphisms. It turns out that the shape of autoc…