Holographic chaos, pole-skipping, and regularity

Understand

We investigate the "pole-skipping" phenomenon in holographic chaos.

• According to the pole-skipping, the energy-density Green's function is not unique at a special point in complex momentum plane.
• This arises because the bulk field equation has two regular near-horizon solutions at the special point.
• We study the regularity of two solutions more carefully using curvature invariants.