1:30 pm VIA ZOOM

Holographic cameras: an eye for the bulk.

We consider four-point correlators in an arbitrary excited state of a quantum field theory. We show that when the theory and state are holographic, such correlators can produce high-quality movies of point-like bulk particles, revealing the geometry in which they move. In some situations, Einstein’s equations amount to a local differential equation on the correlator data. In theories or states that are not holographic, the method produces images that are too blurry to extract a bulk geometry. Calculations are performed by adapting formulas from conformal Regge theory to excited states, and out-of-time-order correlators.

## Event Type

**Feb**

**20**