97 citations · 103 across the 4 of their papers we have counts for
4 papers
Consistent energy-momentum trace couplings of fluids
Christian G. Boehmer, Eissa Al-Nasrallah
Gravitational models with non-minimal couplings involving the trace of the energy-momentum tensor have become increasingly popular. The idea of coupling the trace of the matter ten…
Buchdahl stars and bounds with cosmological constant
Christian G. Boehmer, Naresh Dadhich, Surajit Das
The Schwarzschild interior solution, when combined with the assumption of a finite central pressure, leads to the well-known Buchdahl bound. This bound establishes an upper limit o…
Azimuthal geodesics in closed FLRW cosmologies
Christian G. Boehmer, Antonio d'Alfonso del Sordo, Betti Hartmann
Modern cosmology is closely linked to our understanding of radial null geodesics as these model the propagation of light signals through an expanding universe. Azimuthal geodesics,…
The Einstein-Cartan-Elko system
Christian G. Boehmer
The present paper analyses the Einstein-Cartan theory of gravitation with Elko spinors as sources of curvature and torsion. After minimally coupling the Elko spinors to torsion, th…