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Conical holographic heat engines

Ahmed, Wasif; Chen, Hong Zhe; Gesteau, Elliott; Gregory, Ruth; Scoins, Andrew

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Wasif Ahmed

Hong Zhe Chen

Elliott Gesteau

Ruth Gregory


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 charges to the black hole does not change this qualitative effect. We also present a simple formula to calculate the efficiency of elliptical cycles for any black hole, which allows a more efficient numerical algorithm for computation.


Ahmed, W., Chen, H. Z., Gesteau, E., Gregory, R., & Scoins, A. (2019). Conical holographic heat engines. Classical and Quantum Gravity, 36(21),

Journal Article Type Article
Acceptance Date Sep 23, 2019
Online Publication Date Oct 14, 2019
Publication Date Oct 14, 2019
Deposit Date Oct 17, 2019
Publicly Available Date Oct 14, 2020
Journal Classical and Quantum Gravity
Print ISSN 0264-9381
Electronic ISSN 1361-6382
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 36
Issue 21


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