Is the cosmological constant of topological origin?
Abstract
The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an EinsteinCartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessencelike topological fields. Its evaluation through the boundary of black holes yields a range compatible with the observed value, with uncertainty of three orders of magnitude. In turns, it provides a measurement of the Universe's isoperimetric constant. As in other dark energy studies, quantum vacuum energy corrections are left for quantum gravity studies to explain away.
 Publication:

Physics of the Dark Universe
 Pub Date:
 September 2020
 DOI:
 10.1016/j.dark.2020.100569
 arXiv:
 arXiv:1906.03041
 Bibcode:
 2020PDU....2900569L
 Keywords:

 General Relativity and Quantum Cosmology
 EPrint:
 6pp