300 citations · 2.1k across the 83 of their papers we have counts for
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Hawking Temperature and the Inverse-Radius Scale of the Horizon
Michael R. R. Good, Yen Chin Ong
The Hawking temperature of a Schwarzschild black hole can be heuristically derived by identifying the temperature with the inverse radius of the horizon up to a multiplicative cons…
Generalized Entropy Implies Varying-G: Horizon Area Dependent Field Equations and Black Hole-Cosmology Coupling
Hengxin Lu, Sofia Di Gennaro, Yen Chin Ong
When the Bekenstein-Hawking entropy is modified, ambiguity often arises concerning whether the Hawking temperature or the thermodynamic mass should be modified. The common practice…
Upper Bound of Barrow Entropy Index from Black Hole Fragmentation
Jiayi Xia, Yen Chin Ong
Both classical and quantum arguments suggest that if Barrow entropy is correct, its index must be energy dependent, which would affect the very early universe. Based on thermod…
A Maximum Force Perspective on Black Hole Thermodynamics, Quantum Pressure, and Near-Extremality
Yen Chin Ong
I re-examined the notion of the thermodynamic force constructed from the first law of black hole thermodynamics. In general relativity, the value of the charge (or angular momentum…
A Critique on Some Aspects of GUP Effective Metric
Yen Chin Ong
The generalized uncertainty principle (GUP) is a gravitational correction of Heisenberg's uncertainty principle, which allows us to probe some features of quantum gravity even with…
Electron as a Tiny Mirror: Radiation From a Worldline With Asymptotic Inertia
Michael R. R. Good, Yen Chin Ong
We present a moving mirror analog of the electron, whose worldline possesses asymptotic constant velocity with corresponding beta Bogolubov coefficients that are consistent with fi…
An Effective Sign Switching Dark Energy: Lotka-Volterra Model of Two Interacting Fluids
Yen Chin Ong
One of the recent attempts to address the Hubble and tensions is to consider the Universe started out not as a de Sitter-like spacetime, but rather anti-de Sitter-like. That…
On Black Hole Thermodynamics, Singularity, and Gravitational Entropy
Yen Chin Ong
Many fundamental issues remain for black hole thermodynamics after almost half a century of its conception. For example, what are the underlying degrees of freedom of a black hole…
How Barrow Entropy Modifies Gravity: With Comments on Tsallis Entropy
Sofia Di Gennaro, Hao Xu, Yen Chin Ong
Barrow proposed that the area law of the horizon entropy might receive a "fractal correction" due to quantum gravitational effects, with $0\leqslant Δ\leqslant…
Sign Switching Dark Energy from a Running Barrow Entropy
Sofia Di Gennaro, Yen Chin Ong
Barrow proposed that the area law of the entropy associated with a horizon might receive a "fractal correction" due to quantum gravitational effects -- in place of , we…
On the Chandrasekhar Limit in Generalized Uncertainty Principles
Daniele Gregoris, Yen Chin Ong
The Chandrasekhar limit for white dwarfs has been confirmed by many astrophysical observations. However, how to obtain it theoretically in models which rely on other-than-Heisenber…
Understanding Gravitational Entropy of Black Holes: A New Proposal via Curvature Invariants
Daniele Gregoris, Yen Chin Ong
Partly motivated by the arrow of time problem in cosmology and the Weyl curvature hypothesis formulated by Roger Penrose, previous works in the literature have proposed - among oth…
The Hookean Law of Black Holes and Fragmentation: Insights from Maximum Force Conjecture and Ruppeiner Geometry
Sofia Di Gennaro, Michael R. R. Good, Yen Chin Ong
We show that the notion of "Hookean law" , suitably defined in asymptotically flat singly spinning Myers-Perry black hole spacetimes in dimensions , is related…
Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
Mariam Bouhmadi-López, Che-Yu Chen, Xiao Yan Chew +2
We numerically construct a symmetric wormhole solution in pure Einstein gravity supported by a massive -form field with a potential that contains a quartic self-interaction term…
On the Counter-Rotation of Closed Timelike Curves
Yuanyuan Duan, Fangxun Liu, Yu Wang +1
While it is tempting to think of closed timelike curves (CTCs) around rotating bodies such as a black hole as being "caused" by the rotation of the source, Andréka et al. pointed o…
How Anti-de Sitter Black Holes Reach Thermal Equilibrium
Ru Ling, Hao Xu, Yen Chin Ong
It is commonly known in the literature that large black holes in anti-de Sitter spacetimes (with reflective boundary condition) are in thermal equilibrium with their Hawking radiat…
A Critical Assessment of Black Hole Solutions With a Linear Term in Their Redshift Function
Daniele Gregoris, Yen Chin Ong, Bin Wang
Different theories of gravity can admit the same black hole solution, but the parameters usually have different physical interpretations. In this work we study in depth the linear…
Feasibility of Primordial Black Hole Remnants as Dark Matter in View of Hawking Radiation Recoil
Sofia Di Gennaro, Yen Chin Ong
It has recently been suggested that black hole remnants of primordial origin are not a viable dark matter candidate since they would have far too large a velocity due to the recoil…
Null Hypersurface Caustics, Closed Null Curves, and Super-Entropy
Sousuke Noda, Yen Chin Ong
Recently it was discovered that null hypersurfaces can develop caustics outside the event horizon of super-entropic Kerr-AdS black holes, in contrast to the usual Kerr-AdS case. In…
Event Horizon Wrinklification
Brett McInnes, Yen Chin Ong
The possible existence of stable black holes with entropies larger than the corresponding Schwarzschild black hole has been discussed extensively. The recently proposed "rough" bla…
Spacetime Singularities and Cosmic Censorship Conjecture: A Review with Some Thoughts
Yen Chin Ong
The singularity theorems of Hawking and Penrose tell us that singularities are common place in general relativity. Singularities not only occur at the beginning of the Universe at…
Regular Black Hole Interior Spacetime Supported by Three-Form Field
Mariam Bouhmadi-López, Che-Yu Chen, Xiao Yan Chew +2
In this paper, we show that a minimally coupled 3-form endowed with a proper potential can support a regular black hole interior. By choosing an appropriate form for the metric fun…
Schwinger Pair Production and the Extended Uncertainty Principle: Can Heuristic Derivations Be Trusted?
Yen Chin Ong
The rate of Schwinger pair production due to an external electric field can be derived heuristically from the uncertainty principle. In the presence of a cosmological constant, it…
Black Hole Evaporation in Hořava-Lifshitz Gravity
Hao Xu, Yen Chin Ong
Hořava-Lifshitz (HL) gravity was formulated in hope of solving the non-renormalization problem in Einstein gravity and the ghost problem in higher derivative gravity theories by vi…