To investigate the emergence of spatio-temporal complexity in
the solar cycle, we applied some simple concepts of information
theory. In particular, moving from a simple parallelism between
Eq. (6) and the evolution of states in quantomechanics, it is, indeed,
possible to define a time-dependent probability of finding
the system in a certain configuration. This is our starting point
for the application of information theory. However, we begin by
describing the above parallelism in detail.
In quantomechanics, the evolution of a certain state |ψ can
be generally written as