Chiral Vortical Effect for Bosons

Understand

The thermal contribution to the chiral vortical effect is believed to be related to the axial anomaly in external gravitational fields.

• We use the universality of the spin-gravity interaction to extend this idea to a wider set of phenomena.
• We consider the Kubo formula at weak coupling for the spin current of a vector field and derive a novel anomalous effect caused by the medium rotation: the chiral vortical effect for bosons.
• The effect consists in a spin current of vector bosons along the angular velocity of the medium.