782 citations · 5.2k across the 94 of their papers we have counts for
94 papers
The Doublet Tower of Cl(4,2): Universal Nilpotency, Projector Identities, and the sl(8,R) Parabolic from Conformal Null Vectors
Steen H. Hansen
The conformal geometric algebra Cl(4,2) ~ R(8) carries a natural Z_2-grading defined by the dilatation bivector D=\e_4e_0, which satisfies and splits the eight-dimensional…
Cosmological test of an ultraviolet origin of Dark Energy
Hans Christiansen, Bence Takács, Steen H. Hansen
The accelerated expansion of the Universe is impressively well described by a cosmological constant. However, the observed value of the cosmological constant is much smaller than e…
A phenomenological model for dark matter phase space distribution
Zhen Li, Steen H. Hansen
Understanding the nature of dark matter is among the top priorities of modern physics. However, due to its inertness, detecting and studying it directly in terrestrial experiments…
The destiny of Dark Matter
Fabiano Tracanna, Steen H. Hansen
The majority of baryons, which account for of the matter in the Universe, will end their lives as carbon and oxygen inside cold black dwarfs. Dark matter (DM) makes up the r…
Accelerated expansion induced by Dark Matter with two charges
Steen H. Hansen
The accelerated expansion of the universe has been established through observations of supernovae, the growth of structure, and the cosmic microwave background. The most popular ex…
A force proportional to velocity squared derived from spacetime algebra
Steen H. Hansen
The underlying geometri of spacetime algebra allows one to derive a force by contracting the relativistic generalization of angular momentum, M, with the mass-current, mw, where w…