Hamiltonian Systems

Event Information Quantized hydrodynamics on the sphere
12:00 on Tuesday October 19, 2021
13:30 on Tuesday October 19, 2021
Virtual
Klas Modin

Chalmers University of Technology and University of Gothenburg

In this talk I revisit an idea of Vladimir Zeitlin and explore quantization theory for finite-dimensional analogs of the 2D incompressible Euler equations. The approach gives rise to spatial and temporal discretizations that preserve all underlying geometric features (in particular Casimir functions and the Lie-Poisson structure). It enables numerical experiments of the long-time behavior of 2D fluids - a long standing problem in hydrodynamics. For geometric reasons the approach works much better on the sphere than on the flat torus Zeitlin used. I shall also discuss how the quantized equations themselves may give insights to the 2D Euler dynamics, following up an idea by Shnirelman.

The talk will be via Zoom at: https://utoronto.zoom.us/j/99576627828

Passcode: 448487

https://arxiv.org/abs/2102.01451