Physics Group Meeting

This discussion will focus on the question of how locality on distance scales smaller than the AdS radius can emerge from a CFT. We will introduce Landau singularities as a sign of locality in QFT, and discuss the extent to which they are present holographically.

Reading list:

- Early discussion of bulk-point singularities: http://arxiv.org/abs/0903.4437

- Conformal block expansion in holographic theories: http://arxiv.org/abs/0907.0151

- More recent discussion of bulk-point singularities: http://arxiv.org/abs/1509.03612

- Locality in three-point functions of the stress-tensor: http://arxiv.org/abs/1407.5597

- If time permits, we will compare and contrast bulk-point singularities and the Regge limit, and discuss the relationship to the chaos bound: http://arxiv.org/abs/1503.01409