5 papers
Aspects of the bulk flat space limit in AdS/CFT
David Berenstein, Joan Simon
The flat space limit of scalar bulk fields in AdS is discussed within a Lorentzian canonical quantization setup tailored to describe AdS state preparation and to extract the flat S…
The Tortoise and the Hare: A Causality Puzzle in AdS/CFT
David Berenstein, David Grabovsky
We pose and resolve a holographic puzzle regarding an apparent violation of causality in AdS/CFT. If a point in the bulk of moves at the speed of light, the boundary subregio…
Integrable Spin Chains from large- QCD at strong coupling
David Berenstein, Hiroki Kawai
We study a spin chain for a confining string that arises at first order in degenerate perturbation from the strong-coupling expansion of the Kogut-Susskind Hamiltonian on a square…
Aspects of Holography in Conical
David Berenstein, David Grabovsky, Ziyi Li
We study the Feynman propagator of free scalar fields in with a conical defect. The propagator is built by solving the bulk equation of motion, summing over the modes of th…
Chaotic LLM billiards
David Berenstein, Elliot Maderazo, Robinson Mancilla +1
We study null geodesics of the ten-dimensional LLM geometries. In particular, we show that there are a subset of these null geodesics that are confined to the LLM plane. The effect…