From global to heavy-light: 5-point conformal blocks

Understand

We consider Virasoro conformal blocks in the large central charge limit.

• There are different regimes depending on the behavior of the conformal dimensions.
• The most simple regime is reduced to the global sl(2, C) conformal blocks while the most complicated one is known as the classical conformal blocks.
• Recently, Fitzpatrick, Kaplan, and Walters showed that the two regimes are related through the intermediate stage of the so-called heavy-light semiclassical limit.