259 citations
- University of StavangerNO6 papers
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20 papers · 1 filter
Higher dimensional VSI spacetimes
A. Coley, A. Fuster, S. Hervik +1
We present the explicit metric forms for higher dimensional vanishing scalar invariant (VSI) Lorentzian spacetimes. We note that all of the VSI spacetimes belong to the higher dime…
On the evolution of universes in quadratic theories of gravity
John D. Barrow, Sigbjorn Hervik
We use a dynamical systems approach to investigate Bianchi type I and II universes in quadratic theories of gravity. Due to the complicated nature of the equations of motion we foc…
On the mathematical modelling of measurement
Jonathan Barzilai
The operations of linear algebra, calculus, and statistics are routinely applied to measurement scales but certain mathematical conditions must be satisfied in order for these oper…
Hydrogen-Helium Mixtures in the Interiors of Giant Planets
Jan Vorberger, I. Tamblyn, B. Militzer +1
Equilibrium properties of hydrogen-helium mixtures under conditions similar to the interior of giant gas planets are studied by means of first principle density functional molecula…
Kinematic and Weyl singularities
W. C. Lim, A. A. Coley, S. Hervik
We study the properties of a future singularity encountered by a perfect fluid observer in tilting spatially homogeneous Bianchi cosmologies. We derive the boost formulae for the W…
Dark channels in resonant tunneling transport through artificial atoms
Eduardo Vaz, Jordan Kyriakidis
We investigate sequential tunneling through a multilevel quantum dot confining multiple electrons, in the regime where several channels are available for transport within the bias…