3 papers
gr-qc2025
Thermodynamics in space-times without horizons
Raymond Isichei, João Magueijo
We consider the energetics and thermodynamics of spacetimes with no horizons, but endowed with a preferred timelike junction surface. They could arise as a limiting case of the gra…
gr-qc2025
Attracting without being attracted: Dark Matter as an aether wind
Raymond Isichei, Joao Magueijo
We explore the possibility that part of what we call dark matter may be the mark of a preferred frame, revealing a breakdown of diffeomorphism invariance. In the non-relativistic l…
gr-qc2022
Approaches To Quantum Cosmology: A Review
Raymond Isichei
A review of the path integral approach to quantum cosmology and its relation to canonical quantisation. The initial derivation of the Hartle-Hawking and Vilenkin wavefunctions from…