On consistency of hydrodynamic approximation for chiral media

Understand

We consider chiral liquids, that is liquids consisting of massless fermions and right-left asymmetric.

• In such media, one expects existence of electromagnetic current flowing along an external magnetic field, associated with the chiral anomaly.
• The current is predicted to be dissipation-free.
• We consider dynamics of chiral liquids, concentrating on the issues of possible instabilities and infrared sensitivity.