26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

Afternoon Tea and Poster Session 1

8 Dec 2026, 15:30

Belinda Hutchinson Building (The University of Sydney )

454. Classical-quantum gravity as quantum gravity in disguise

AIP | General Relativity and Gravitation (ASGRG)

Contributed Oral

Whether gravity must be quantized remains one of the biggest open problems in fundamental physics. Classical-quantum hybrid theories have recently attracted attention as a possible framework in which gravity is treated classically yet interacts consistently with quantum matter. Schemes based on completely positive dynamics satisfy most formal consistency requirements and enable a systematic...

781. Observational predictions of dark matter particles arising through gravitational quantization

AIP | Astroparticle Physics (GAP)

Poster

Describing localized particle wavefunctions as the superposition of quantum states of gravitational wells shows that interaction cross sections (Compton scattering etc.) can vary with the speed and position of the particle in the gravitational well (i.e. the functional form of the wavefunction). Significantly these wavepacket cross sections can be much reduced compared to those calculated in...

465. Physical Black Holes: Properties and Observational Tests

Daniel Terno

AIP | General Relativity and Gravitation (ASGRG)

Contributed Oral

A physical black hole is a light-trapping region whose apparent horizon forms in finite time for a distant observer, irrespective of whether an event horizon exists. Recent work shows that, if such objects form, their near-horizon geometry is not merely a dynamical version of the Schwarzschild or Kerr picture: it has unusual structural properties and features that differ substantially from...