840 citations · 3.6k across the 110 of their papers we have counts for
9 papers · 1 filter
Discrete Hilbert Space, the Born Rule, and Quantum Gravity
Stephen D. H. Hsu
Quantum gravitational effects suggest a minimal length, or spacetime interval, of order the Planck length. This in turn suggests that Hilbert space itself may be discrete rather th…
Quantum fluctuations in planar domain-wall space-times: A possible origin of primordial preferred direction
Chih-Hung Wang, Yu-Huei Wu, Stephen D. H. Hsu
We study the gravitational effects of a planar domain wall on quantum fluctuations of a massless scalar field during inflation. By obtaining an exact solution of the scalar field e…
Asymptotic Safety, Singularities, and Gravitational Collapse
Roberto Casadio, Stephen D. H. Hsu, Behrouz Mirza
Asymptotic safety (an ultraviolet fixed point with finite-dimensional critical surface) offers the possibility that a predictive theory of quantum gravity can be obtained from the…
White holes and eternal black holes
Stephen D. H. Hsu
We investigate isolated white holes surrounded by vacuum, which correspond to the time reversal of eternal black holes that do not evaporate. We show that isolated white holes prod…
The black hole information paradox and macroscopic superpositions
Stephen D. H. Hsu
We investigate the experimental capabilities required to test whether black holes destroy information. We show that an experiment capable of illuminating the information puzzle mus…
Monsters, black holes and the statistical mechanics of gravity
Stephen D. H. Hsu, David Reeb
We review the construction of monsters in classical general relativity. Monsters have finite ADM mass and surface area, but potentially unbounded entropy. From the curved space per…