198 citations · 3.3k across the 147 of their papers we have counts for
5 papers · 1 filter
Gravity Without Curved Spacetime: A Simple Calculation
F. R. Klinkhamer
Classical-particle trajectories are calculated for the static Einstein universe without requiring that the 3-space be closed and curved. Freely-moving test particles are found to r…
On vacuum-energy decay from particle production
F. R. Klinkhamer
A simplified (but consistent) description of particle-production backreaction effects in de Sitter spacetime is given.
De-Sitter-spacetime instability from a nonstandard vector field
V. Emelyanov, F. R. Klinkhamer
It is found that de-Sitter spacetime, the constant-curvature matter-free solution of the Einstein equations with a positive cosmological constant, becomes classically unstable due…
Dynamically broken Lorentz invariance from the Higgs sector?
F. R. Klinkhamer
The original Abelian U(1) Higgs model in flat spacetime is enlarged by the addition of one real scalar with a particular potential. It is then shown that, while maintaining the ori…
Entropic-gravity derivation of MOND
F. R. Klinkhamer
A heuristic entropic-gravity derivation has previously been given of the gravitational two-body force of modified Newtonian dynamics (MOND). Here, it is shown that also another cha…