Chiral anomaly in fluid dynamics | המחלקה לפיזיקה

Seminar

QUEST Center event

No

Speaker

Alexander Abanov - Stony Brook University

Date

23/03/2023 - 13:30 - 12:30Add to Calendar 2023-03-23 12:30:00 2023-03-23 13:30:00 Chiral anomaly in fluid dynamics An ideal barotropic fluid in three spatial dimensions has an additional conservation law - the conservation of the fluid helicity. We couple the helicity density to a background axial-vector potential. Using the variational principle, we show that the fluid dynamics in the presence of an axial vector and vector potentials have a mixed vector-axial anomaly known in quantum field theories with Dirac fermions. Conference room on the 0th floor of Resnick building המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public

Place

Conference room on the 0th floor of Resnick building

Abstract

An ideal barotropic fluid in three spatial dimensions has an additional conservation law - the conservation of the fluid helicity. We couple the helicity density to a background axial-vector potential. Using the variational principle, we show that the fluid dynamics in the presence of an axial vector and vector potentials have a mixed vector-axial anomaly known in quantum field theories with Dirac fermions.