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most citedGravitational Wave Astronomy With TianQin

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gr-qc2026

Extremalization approach to black hole thermodynamics: perturbations around higher-derivative gravities

Aonan Zhang, Qiang Wang, Yong Xiao

When higher-derivative terms are added to a gravitational action, black hole solutions and their thermodynamic properties are generally corrected. Recent progress has shown that, b…

gr-qc2026

Quantum gravitational corrections to Reissner-Nordström black hole thermodynamics and their implications for the weak gravity conjecture

Yong Xiao, Qiang Wang, Aonan Zhang

In this paper, we investigate the quantum gravitational corrections to the thermodynamical quantities of Reissner-Nordström black holes within the framework of effective field the…

gr-qc2026

Explicit and covariant formula for thermodynamic volume in extended black hole thermodynamics

Yong Xiao, Yu-Xiao Liu, Yu Tian +1

In extended black hole thermodynamics, the cosmological constant and other couplings are treated as thermodynamic variables, yielding the first law $\tildeδM = T\tildeδS+Ω\tilde…

gr-qc2026

Possible evidences for physics beyond CDM from DESI DR2 data

Rong-Jia Yang

We analyze DESI DR2 data with a model-independent method and find that: (a) the expansion of the universe may speed up with a confidence level more than 2.3 at redshift $z_{51…

gr-qc2026

Kiselev Black holes in quantum fluctuation modified gravity

Yaobin Hua, Rong-Jia Yang

We obtain a new general solution for the gravitational field equations in quantum fluctuation modified gravity, which reduces to different classes of black holes surrounded by flui…

gr-qc2026

Validity of the Background Subtraction Method for Black Hole Thermodynamics in Matter-Coupled Gravity Theories

Yong Xiao, Aonan Zhang

The background subtraction method has long served as a practical tool for computing the Euclidean action and thermodynamic quantities of black holes. While its equivalence to the I…