Thermodynamics and Multi-Horizon Solutions in Quartic Quasitopological Gravity: A Power-Maxwell Approach
نویسندگان
1 Department of Physics, Jahrom University, Jahrom, P.O. Box 74137-66171, Iran
2 Department of Physics, Jahrom University, Jahrom, P.O. Box 74137-66171, Iran
3 Department of Physics, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
4 Department of Physics, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
doi
10.22128/ijaa.2025.3009.1220چکیده
We derive exact black hole solutions in $(n+1)$-dimensional fourth-order quasitopological gravity (4QTG) coupled to power-Maxwell electrodynamics. Thermodynamic properties (entropy, temperature, electric potential) are analyzed, verifying the first law. Crucially, thermal stability is \textit{exclusively} achievable in asymptotically AdS spacetimes, while dS and flat solutions exhibit universal instability. The study reveals that 4QTG supports multi-horizon black holes even without charge—a feature absent in Einstein gravity—due to repulsive effects of quartic curvature terms. These results highlight the role of higher-curvature corrections in resolving classical limitations of general relativity and provide new insights for AdS/CFT correspondence.
