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Seminar with Alexander Abanov

Thursday, Feb 10
2:00 PM -
3:00 PM EST

Anomalous helicity non-conservation in Euler fluids

Speaker: Alexander Abanov, SUNY Stonybrook
Location: Room 5209 and via Zoom

We argue that a close analog of an axial-current anomaly in quantum electrodynamics (QED) occurs in the classical Euler fluid. The current of fluid helicity plays the role of an axial current in an inviscid barotropic fluid. If the fluid is charged and placed in the background of an external electromagnetic field, the helicity is generated in a way identical to the generation of the axial charge in QED with the rate proportional to the dot product of electric and magnetic fields. We also consider an axial gauge field background to make an analogy with QED more manifest. 

Questions to: Vadim.oganesyan@gmail.com

Sponsored by the Ph.D. program in Physics and the Initiative for the Theoretical Sciences

Earlier Event: February 8
Seminar with Sriram Ganeshan
Later Event: February 25
Entropy production, thermodynamic uncertainty, and information