# Null hypersurface caustics for high-dimensional superentropic black holes

@inproceedings{Wu2021NullHC, title={Null hypersurface caustics for high-dimensional superentropic black holes}, author={Di Wu and Puxun Wu}, year={2021} }

A black hole is superentropic if it violates the reverse isoperimetric inequality. Recently, some studies have indicated that some four dimensional superentropic black holes have the null hypersurface caustics (NHC) outside their event horizons. In this paper, we extend to explore whether or not the NHC exists in the cases of high dimensional superentropic black holes. We consider the singly rotating Kerr-AdS superentropic black holes in arbitrary dimensions and the singly rotating charged…

## 6 Citations

### Classifying topology of consistent thermodynamics of four-dimensional Lorentzian NUT-charged spacetimes

- Physics
- 2023

In this paper, employing the uniform modified form of the generalized off-shell Helmholtz free energy, we investigate the topological numbers for the whole class of four-dimensional NUT-charged…

### Light deflection angle by superentropic black holes

- PhysicsInternational Journal of Modern Physics D
- 2022

Motivated by recent works on light deflection and shadow behaviors on AdS geometries [S. Haroon, M. Jamil, K. Jusufi, K. Lin and R. B. Mann, Phys. Rev. D 99 (2019) 044015, arXiv:1810.04103; A.…

### Shadowless rapidly rotating yet not ultraspinning Kerr- AdS4 and Kerr-Newman- AdS4 black holes

- PhysicsPhysical Review D
- 2021

We find that the Kerr-(Newman)-AdS4 black hole will be shadowless if its rotation parameter is larger than a critical value and the shadowless-ness may be related to the appearance of the null…

### Ultraspinning Chow’s black holes in six-dimensional gauged supergravity and their thermodynamical properties

- Physics
- 2021

By taking the ultraspinning limit as a simple generating solution trick, we construct a novel class of two equal-charge ultraspinning black hole solutions from Chow’s rotating charged black hole in…

### Ultraspinning Chow’s black holes in six-dimensional gauged supergravity and their thermodynamical properties

- Physics
- 2021

By taking the ultraspinning limit as a simple generating solution trick, we construct a novel class of two equal-charge ultraspinning black hole solutions from Chow’s rotating charged black hole in…

### Ultra-spinning Chow’s black holes in six-dimensional gauged supergravity and their properties

- PhysicsJournal of High Energy Physics
- 2021

By taking the ultra-spinning limit as a simple solution-generating trick, a novel class of ultra-spinning charged black hole solutions has been constructed from Chow’s rotating charged black hole…

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