361 citations
- Okanagan University CollegeCA13 papers
- National Research Council CanadaCA9 papers
- University of British ColumbiaCA6 papers
- University of British Columbia, Okanagan CampusCA6 papers
- Herzberg Institute of AstrophysicsCA5 papers
- Max Planck Institute for Radio AstronomyDE5 papers
- Australian National UniversityAU4 papers
- Canadian Institute for Theoretical AstrophysicsCA4 papers
- Dominion Astrophysical ObservatoryCA4 papers
- Radboud University NijmegenNL4 papers
- Université Paris-Est CréteilFR4 papers
- University of CalgaryCA4 papers
5 papers · 1 filter
On the Dirac field in the Palatini form of 1/R gravity
Dan N. Vollick
In recent papers (astro-ph/0306630, gr-qc/0312041) I have argued that the observed cosmological acceleration can be accounted for by the inclusion of a 1/R term in the gravitationa…
On the viability of the Palatini form of 1/R gravity
Dan N. Vollick
Recently Flanagan [astro-ph/0308111] has argued that the Palatini form of 1/R gravity is ruled out by experiments such as electron-electron scattering. His argument involves adding…
Palatini approach to Born-Infeld-Einstein theory and a geometric description of electrodynamics
Dan N. Vollick
The field equations associated with the Born-Infeld-Einstein action are derived using the Palatini variational technique. In this approach the metric and connection are varied inde…
Quantum Inequalities in Curved Two Dimensional Spacetimes
Dan N. Vollick
In quantum field theory there exist states for which the energy density is negative. It is important that these negative energy densities satisfy constraints, such as quantum inequ…
Maintaining a Wormhole with a Scalar Field
Dan N. Vollick
It is well known that it takes matter that violates the averaged weak energy condition to hold the throat of a wormhole open. The production of such ``exotic'' matter is usually di…