# Photonic chiral vortical effect

## TL;DR

This paper introduces the photonic chiral vortical effect, describing how circularly polarized photons generate a current aligned with vorticity, with potential implications for astrophysics and condensed matter systems.

## Contribution

It derives the non-equilibrium photon current expression based on Berry curvature and kinetic theory, highlighting a novel effect in chiral photon dynamics.

## Key findings

- Photon current aligns with vorticity in chiral photon systems
- Relevance to astrophysical objects like pulsars and stars
- Potential realization in semiconductor materials

## Abstract

Circularly polarized photons have the Berry curvature in the semiclassical regime. Based on the kinetic equation for such chiral photons, we derive the (non)equilibrium expression of the photon current in the direction of the vorticity. We briefly discuss the relevance of this "photonic chiral vortical effect" in pulsars and rotating massive stars and its possible realization in semiconductors.