3 papers
hep-th2026
Superselected ghost theory: perturbation theory
Bob Holdom
A superselection rule based on an exact ghost parity can endow a ghost QFT with a probability interpretation. However, this ghost parity is not respected at finite order in the sta…
hep-th2026
Superselected ghost theory: real spectrum
Bob Holdom
Quantum field theories with ghosts can be unitary and perturbatively stable, yet the negative-norm states of their conserved indefinite inner product obstruct a probabilistic inter…
gr-qc2026
Negative mass singularities mimicking dark energy
Bob Holdom
One or two negative mass singularities are found to occur in static inhomogeneous spatially closed solutions to the Einstein equations. The singularities produce a positive Komar m…