Brane Induced Gravity: Codimension-2

Understand

We review the results of arXiv:hep-th/0703190, on brane induced gravity (BIG) in 6D.

• Among a large diversity of regulated codimension-2 branes, we find that for near-critical tensions branes live inside very deep throats which efficiently compactify the angular dimension.
• In there, 4D gravity first changes to 5D, and only later to 6D.
• The crossover from 4D to 5D is independent of the tension, but the crossover from 5D to 6D is not.