 |
 |
 |
 |
 |
| introduction | talks | archive | contact | location |
11:15-13:00:
Gerard
Barkema, Utrecht University
Non-equilibrium entropy: from structural glasses
to the Ising model
14:15-16:00: Karel Netocny
*
Abstracts:
Gerard
Barkema
"Non-equilibrium
entropy: from structural glasses to the Ising model"
The common computational procedure to
estimate the entropy S(T) at temperature T is to measure the energy E as a
function of temperature, and then to integrate (1/T) (dE/dT) from some reference
temperature T' with known entropy S(T').
This requires sampling a system over a range of temperatures and can therefore
only be applied to systems with relatively fast dynamics over this whole range
in temperature.
In this talk, I discuss a different approach to estimate the entropy, based on
Shannon's information theory. First, I outline this approach as it is applied to
the Ising model.
Next, I apply this information-theoretic approach to estimate the entropy of
glassy materials -- amorphous silicon and vitreous silica.
Finally, I discuss some preliminary applications in non-equilibrium statistical
physics.