The University of Arizona

Macroscopic Non-uniqueness and Limits of Hamiltonian Dynamics

Macroscopic Non-uniqueness and Limits of Hamiltonian Dynamics

Series: Mathematical Physics and Probability Seminar
Location: Math 402
Presenter: Jianfei Xue, University of Arizona

We construct explicit examples of spontaneous energy generation and non-uniqueness for the compressible Euler system, with and without pressure, by taking limits of Hamiltonian dynamics as the number of molecules increases to infinity. The examples come from rescalings of well-posed, deterministic systems of molecules that either collide elastically or interact via singular pair potentials.

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