# R^2 Corrections to Black Ring Entropy

@article{Bena2005R2CT, title={R^2 Corrections to Black Ring Entropy}, author={Iosif Bena and Per Kraus}, journal={arXiv: High Energy Physics - Theory}, year={2005} }

Recently, Guica, Huang, Li, and Strominger considered an R^2 correction to the entropy of a black ring, and found a mismatch between supergravity and the CFT. However, such a comparison should take into account the subtle distinction between the asymptotic charges of the black ring and the charges entering the CFT description. We show that using the correct charges yields perfect agreement.

## 20 Citations

### On entropy function for supersymmetric black rings

- Physics
- 2007

The entropy function for five-dimensional supersymmetric black rings, which are solutions of U(1)(3) minimal supergravity, is calculated via both on-shell and off-shell formalism. We find that at the…

### Near the horizon of 5D black rings

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For the five dimensional = 2 black rings, we study the supersymmetry enhancement and identify the global supergroup of the near horizon geometry. We show that the global part of the supergroup is…

### R2 corrections for 5D black holes and rings

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### Comments on charges and near-horizon data of black rings

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We study how the charges of the black rings measured at the asymptotic infinity are encoded in the near-horizon metric and gauge potentials, independent of the detailed structure of the connecting…

### CFT duals of black rings with higher derivative terms

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- 2012

We study possible CFT duals of supersymmetric five dimensional black rings in the presence of supersymmetric higher derivative corrections to the supergravity action. A Virasoro algebra associated to…

### with higher derivatives

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: We analyze higher derivative corrections to attractor geometries in ﬁve dimensions. We ﬁnd corrected AdS 3 × S 2 geometries by solving the equations of motion coming from a recently constructed…

### Entropy functions with 5D Chern-Simons terms

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In this article we reconsider Sen's entropy function analysis for 5D supergravity actions containing Chern-Simons terms. The apparent lack of gauge invariance is usually tackled via a 4D reduction.…

### Black holes, black rings and their microstates

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In this review article, we describe some of the recent progress towards the construction and analysis of three-charge configurations in string theory and supergravity. We begin by describing the…

### STRING THEORY EFFECTS ON FIVE-DIMENSIONAL BLACK HOLE PHYSICS

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- 2008

We review recent developments in understanding quantum/string corrections to BPS black holes and strings in five-dimensional supergravity. These objects are solutions to the effective action obtained…

### 5D attractors with higher derivatives

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- 2007

We analyze higher derivative corrections to attractor geometries in five di- mensions. We find corrected AdS3 × S 2 geometries by solving the equations of motion coming from a recently constructed…

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