8 citations · 44 across the 15 of their papers we have counts for
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Weighing the Black Hole via Quasi-local Energy
Yuan K. Ha
We set to weigh the black holes at their event horizons in various spacetimes and obtain masses which are substantially higher than their asymptotic values. In each case, the horiz…
The Horizon Energy of a Black Hole
Yuan K. Ha
We investigate the energy distribution of a black hole in various spacetimes as reckoned by a distant observer using the quasi-local energy approach. In each case the horizon mass…
Weighing The Black Holes Of GW150914
Yuan K. Ha
We evaluate the mass of the black holes of GW150914 at their event horizons via quasi-local energy approach and obtain the values of 71 and 57 solar masses, compared to their asymp…
Is There Unification in the 21st Century?
Yuan K. Ha
In the last 100 years, the most important equations in physics are Maxwell's equations for electrodynamics, Einstein's equation for gravity, Dirac's equation for the electron and Y…
Are Black Holes Elementary Particles?
Yuan K. Ha
Quantum black holes are the smallest and heaviest conceivable elementary particles. They have a microscopic size but a macroscopic mass. Several fundamental types have been constru…
Quantum Black Holes As Elementary Particles
Yuan K. Ha
Are black holes elementary particles? Are they fermions or bosons? We investigate the remarkable possibility that quantum black holes are the smallest and heaviest elementary parti…
A new theorem for black holes
Yuan K. Ha
A new theorem for black holes is established. The mass of a black hole depends on where the observer is. The horizon mass theorem states that for all black holes: neutral, charged…
Horizon Mass Theorem
Yuan K. Ha
A new theorem for black holes is found. It is called the horizon mass theorem. The horizon mass is the mass which cannot escape from the horizon of a black hole. For all black hole…
The Gravitational Energy of a Black Hole
Yuan K. Ha
An exact energy expression for a physical black hole is derived by considering the escape of a photon from the black hole. The mass of the black hole within its horizon is found to…
Coupling of Gravity to Matter via SO(3,2) Gauge Fields
Yuan K. Ha
We consider gravity from the quantum field theory point of view and introduce a natural way of coupling gravity to matter by following the gauge principle for particle interactions…