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Accelerating black holes in 2 + 1 dimensions: holography revisited (2023)
Journal Article
Arenas-Henriquez, G., Cisterna, A., Diaz, F., & Gregory, R. (2023). Accelerating black holes in 2 + 1 dimensions: holography revisited. Journal of High Energy Physics, 2023(9), Article 122. https://doi.org/10.1007/jhep09%282023%29122

This paper studies the holographic description of 2 + 1-dimensional accelerating black holes. We start by using an ADM decomposition of the coordinates suitable to identify boundary data. As a consequence, the holographic CFT lies in a fixed curved b... Read More about Accelerating black holes in 2 + 1 dimensions: holography revisited.

Thermodynamics of Many Black Holes (2021)
Journal Article
Gregory, R., Lim, Z. L., & Scoins, A. (2021). Thermodynamics of Many Black Holes. Frontiers in Physics, 9, Article 666041. https://doi.org/10.3389/fphy.2021.666041

We discuss the thermodynamics of an array of collinear black holes which may be accelerating. We prove a general First Law, including variations in the tensions of strings linking and accelerating the black holes. We analyse the implications of the F... Read More about Thermodynamics of Many Black Holes.

Conical holographic heat engines (2019)
Journal Article
Ahmed, W., Chen, H. Z., Gesteau, E., Gregory, R., & Scoins, A. (2019). Conical holographic heat engines. Classical and Quantum Gravity, 36(21), https://doi.org/10.1088/1361-6382/ab470b

We demonstrate that adding a conical deficit to a black hole holographic heat engine increases its efficiency; in contrast, allowing a black hole to accelerate decreases efficiency if the same average conical deficit is maintained. Adding other charg... Read More about Conical holographic heat engines.

Accelerating black hole chemistry (2019)
Journal Article
Gregory, R., & Scoins, A. (2019). Accelerating black hole chemistry. Physics Letters B, 796, 191-195. https://doi.org/10.1016/j.physletb.2019.06.071

We introduce a new set of chemical variables for the accelerating black hole. We show how these expressions suggest that conical defects emerging from a black hole can be considered as true hair – a new charge that the black hole can carry – and disc... Read More about Accelerating black hole chemistry.

Holographic thermodynamics of accelerating black holes (2018)
Journal Article
Anabalón, A., Appels, M., Gregory, R., Kubizňák, D., Mann, R. B., & Övgün, A. (2018). Holographic thermodynamics of accelerating black holes. Physical Review D, 98(10), Article 104038. https://doi.org/10.1103/physrevd.98.104038

We present a careful study of accelerating black holes in anti-de Sitter spacetime, formulating the thermodynamics and resolving discrepancies that have appeared in previous investigations of the topic. We compute the dual stress-energy tensor for th... Read More about Holographic thermodynamics of accelerating black holes.

Black hole thermodynamics with conical defects (2017)
Journal Article
Appels, M., Gregory, R., & Kubiznak, D. (2017). Black hole thermodynamics with conical defects. Journal of High Energy Physics, 2017(5), Article 116. https://doi.org/10.1007/jhep05%282017%29116

Recently we have shown [1] how to formulate a thermodynamic first law for a single (charged) accelerated black hole in AdS space by fixing the conical deficit angles present in the spacetime. Here we show how to generalise this result, formulating th... Read More about Black hole thermodynamics with conical defects.

Thermodynamics of Accelerating Black Holes (2016)
Journal Article
Appels, M., Gregory, R., & Kubizňák, D. (2016). Thermodynamics of Accelerating Black Holes. Physical Review Letters, 117(13), Article 131303. https://doi.org/10.1103/physrevlett.117.131303

We address a long-standing problem of describing the thermodynamics of a charged accelerating black hole. We derive a standard first law of black hole thermodynamics, with the usual identification of entropy proportional to the area of the event hori... Read More about Thermodynamics of Accelerating Black Holes.

Gauss-Bonnet Holographic Superconductors (2010)
Journal Article
Barclay, L., Gregory, R., Kanno, S., & Sutcliffe, P. (2010). Gauss-Bonnet Holographic Superconductors. Journal of High Energy Physics, 2010(12), Article 29. https://doi.org/10.1007/jhep12%282010%29029

We study holographic superconductors in five dimensional Einstein-Gauss-Bonnet gravity both numerically and analytically. We find the critical temperature of the superconductor decreases as backreaction is increased, although the effect of the Gauss-... Read More about Gauss-Bonnet Holographic Superconductors.