# Negative R$\acute{\text{e}}$nyi entropy and Brane intersection

## TL;DR

This paper investigates the calculation of Rényi entropy in AdS3/(B)CFT2 and discovers that certain gravity solutions involving brane intersections can result in negative Rényi entropy values.

## Contribution

It introduces the concept that brane intersection solutions in gravity can produce negative Rényi entropy, challenging previous assumptions.

## Key findings

- Brane intersection solutions lead to negative Rényi entropy.
- Revisiting Rényi entropy calculations in AdS3/(B)CFT2.
- Implications for holographic entropy interpretations.

## Abstract

In this work, we revisit the calculation of R$\acute{\text{e}}$nyi entropy in AdS$_3$/(B)CFT$_2$. We find that gravity solutions brane intersection will lead to negative R$\acute{\text{e}}$nyi entropy.