2-6 October 2023
Universidad de los Andes / Universidad Nacional de Colombia
America/Bogota timezone

Liouville's theorem, three converging points of view in mechanical and statistical physics

5 Oct 2023, 16:00
2h
Edificio 405 (Universidad Nacional de Colombia)

Edificio 405

Universidad Nacional de Colombia

Poster Statistical Physics Poster session

Speaker

Irene Sánchez Arroyave (Universidad Distrital Francisco José de Caldas)

Description

The proof of Liouville's theorem is important in statistical physics because it establishes a fundamental principle in the theory of dynamical systems and statistical thermodynamics. Liouville's theorem states that in a conservative system (where the total energy is conserved), the volume in phase space occupied by a set of initial conditions is also conserved over time. Starting from three points of view, relevant considerations and postulates are collected, such as the phase space as a dynamic entity that flows following the laws of mechanics; the generalization of Louiville's theorem to non-Hamiltonian systems, such as dissipative systems, taking the invariance of the Jacobian; or reaching the Poincaré-Cartan Integral Invariant, incorporating the symplectic geometry to the phase space and the principle of minimum action.
The present work is framed in the pertinence of making a revision of the concepts even to arrive at the same proof of a theorem, by revisiting its proof and underlying concepts, physicists ensure the validity of this fundamental principle in the ever-evolving landscape of physical theories. It reaffirms the robustness of this principle and its applicability to a wide range of systems.

Primary author

Irene Sánchez Arroyave (Universidad Distrital Francisco José de Caldas)

Presentation Materials

There are no materials yet.