Exact Results in Quantum Theory & Gravity

Skyrmions are solitons in three space dimensions, constructed from a nonlinear pion field. I will discuss their basic properties, including their topological stability, and show examples. Instantons are solitons in four space dimensions, constructed from an SU(2) gauge field. I will show how Skyrmions can be approximated in terms of exact instantons, and instantons can be approximated in terms of exact Skyrmions.

https://zoom.us/j/3135628941?pwd=a3BQT3d2QnErbXlBWmxyV2h1clBSdz09
(Meeting ID: 313 562 8941 Passcode: 254367)