# Is the Cosmological Constant of Topological Origin?

## TL;DR

This paper proposes that the topology of the Universe naturally contributes to the cosmological constant, linking topological invariants to observable cosmic acceleration and providing a new perspective on its origin.

## Contribution

It introduces a novel mechanism where topological invariants induce an effective cosmological constant within Einstein-Cartan gravity, aligning with observed values.

## Key findings

- Topological invariants can generate a cosmological constant compatible with observations.
- Black hole boundary evaluations support the topological origin of the cosmological constant.
- The approach offers a measurement of the Universe's isoperimetric constant.

## 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 Einstein-Cartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessence-like 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.