Chiral Heat Wave and mixing of Magnetic, Vortical and Heat waves in chiral media

Understand

We show that a hot rotating fluid of relativistic chiral fermions possesses a new gapless collective mode associated with coherent propagation of energy density and chiral density waves along the axis of rotation.

• This mode, which we call the Chiral Heat Wave, emerges due to a mixed gauge-gravitational anomaly.
• At finite density the Chiral Heat Wave couples to the Chiral Vortical Wave while in the presence of an external magnetic field it mixes with the Chiral Magnetic Wave.
• The coupling of the Chiral Magnetic and Chiral Vortical Waves is also demonstrated.