2 citations · 5 across the 4 of their papers we have counts for
6 papers
Quantum fields as gravitational sources
Mark J Hadley
The practice of setting quantum fields as sources for classical general relativity is examined. Several conceptual problems are identified which invalidate apparently innocuous equ…
A gravitational explanation for quantum theory - non-time-orientable manifolds
Mark J Hadley
Spacetime manifolds that are not time orientable play a key role in a gravitational explanation of quantum theory. Such manifolds allow topology change, but also have fascinating a…
Classical Dark Matter
Mark J Hadley
Classical particle-like solutions of field equations such as general relativity, could account for dark matter. Such particles would not interact quantum mechanically and would hav…
Time machines and quantum theory
Mark J Hadley
There is a deep structural link between acausal spacetimes and quantum theory. As a consequence quantum theory may resolve some "paradoxes" of time travel. Conversely, non-time-ori…
A conserved Parity Operator
Mark J Hadley
The symmetry of Nature under a Space Inversion is described by a Parity operator. Contrary to popular belief, the Parity operator is not unique. The choice of the Parity operator r…
Topology change and context dependence
Mark J Hadley
The non-classical features of quantum mechanics are reproduced using models constructed with a classical theory - general relativity. The inability to define complete initial data…