57 citations · 144 across the 12 of their papers we have counts for
8 papers · 1 filter
Electromagnetism and photons in continuous media
Finn Ravndal
Different theoretical and experimental aspects of electromagnetic phenomena in media is reviewed. The 100 year old Minkowski theory is in agreement with most experiments, but has t…
Electromagnetic energy-momentum tensors in media
Finn Ravndal
It is pointed out that the previous energy-momentum tensors of Minkowski and Abraham for the electromagnetic field in continuous media are based on a covariant formulation which do…
Resolution of an apparent inconsistency in the electromagnetic Casimir effect
H. Alnes, K. Olaussen, F. Ravndal +1
The vacuum expectation value of the electromagnetic energy-momentum tensor between two parallel plates in spacetime dimensions D > 4 is calculated in the axial gauge. While the pre…
Higher order corrections to the Newtonian potential in the Randall-Sundrum model
Petter Callin, Finn Ravndal
The general formalism for calculating the Newtonian potential in fine-tuned or critical Randall-Sundrum braneworlds is outlined. It is based on using the full tensor structure of t…
Dynamics of the scalar field in 5-dimensional Kaluza-Klein theory
Ingunn Kathrine Wehus, Finn Ravndal
Using the language of differential forms, the Kaluza-Klein theory in 4+1 dimensions is derived. This theory unifies electromagnetic and gravitational interactions in four dimension…
Problems with the Casimir Vacuum Energy
Finn Ravndal
A critical look is taken at the calculation of the Casimir effect. The boundary conditions play an important role and should be imposed in a physical way. An acceptable result for…