Comments on Renyi entropy in AdS$_3$/CFT$_2$

Understand

We extend and refine recent results on Renyi entropy in two-dimensional conformal field theories at large central charge.

• To do so, we examine the effects of higher spin symmetry and of allowing unequal left and right central charges, at leading and subleading order in large total central charge.
• The result is a straightforward generalization of previously derived formulae, supported by both gravity and CFT arguments.
• The preceding statements pertain to CFTs in the ground state, or on a circle at unequal left- and right-moving temperatures.