8 papers · 1 filter
Spectral Chaos from a Fluctuating Quantum Horizon
Chong-Sun Chu
Black holes are conjectured to be maximally chaotic, with their quantum spectra expected to exhibit universal random-matrix correlations. This expectation, however, has so far rest…
Quantum Horizon Tadpole and Emergence of a de Sitter Interior
Chong-Sun Chu
In a recent paper \cite{Chu:2026dhx}, the quantum stability of the fuzzy sphere was established at large but finite , where a tadpole was also identified for the scaling fluctua…
Quantum Stability of the Fuzzy Sphere Black Hole Horizon
Chong-Sun Chu
We establish the perturbative stability of the fuzzy-sphere black-hole horizon in the large- matrix quantum mechanics of \cite{Chu:2024qil}. Large- counting shows that the le…
From Horizon Microstates to the Black Hole Membrane
Chong-Sun Chu
The membrane paradigm represents a black-hole horizon by a fictitious conducting surface. We derive a microscopic electromagnetic membrane from black-hole matrix quantum mechanics.…
Quantum Horizon and Quantum Membrane Paradigm from Black Hole Quantum Mechanics
Chong-Sun Chu
We develop a microscopic quantum membrane paradigm from the matrix quantum mechanics of black holes [1]. It was proposed that a quantum black hole is described by a fuzzy sphere to…
Hawking Radiation from Tunneling in Black Hole Quantum Mechanics
Chong-Sun Chu
It was proposed in \cite{Chu:2024qil} that a quantum black hole can be described by a quantum space configuration of a fuzzy sphere together with a half-filled Fermi sea. In this p…
Quantum Kerr Black Hole from Matrix Theory of Quantum Gravity
Chong-Sun Chu
Recently, a quantum mechanical theory of quantum spaces described by a large non-commutative coordinates is proposed as a model for quantum gravity [1]. In this paper, we const…
A Matrix Model Proposal for Quantum Gravity and the Quantum Mechanics of Black Holes
Chong-Sun Chu
We propose a quantum mechanical theory of quantum spaces described by large noncommutative geometry as a model for quantum gravity. The model admits fuzzy sphere as static solu…