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UMR 5672

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You are here: Home / Seminars / Colloquium / Phase-ordering dynamics for short and long-range systems

Phase-ordering dynamics for short and long-range systems

Paolo Politi (Institute for Complex Systems, CNR, Florence)
When Sep 16, 2019
from 11:00 to 12:00
Where Amphi. Schrödinger
Attendees Paolo Politi
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There is a simple and general question concerning nonequilibrium dynamics:
how does a system with equivalent ground states relax to equilibrium
from a disordered state? The paradigmatic example is the ordering dynamics
of a magnet if the temperature is quenched.
This is an old problem and its discussion allows to elucidate
the role of conservation laws and of the physical dimension of the space,
which is different from that played in equilibrium critical phenomena.

In the first part of the talk I will review known results for short-range
systems, than I will discuss recent results about the effects of a long-range coupling.
The focus of the talk will be on the physics and I will use simplified
models to explain the different dynamics. 

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