Time-dependent cosmological constant in the Jackiw-Teitelboim cosmology
M. Alves, J. Barcelos-Neto, M. Novello, and J.M. Salim
TL;DR
This paper investigates a model in two-dimensional Jackiw-Teitelboim cosmology that produces a time-dependent cosmological constant, which diminishes over time and results in a nonsingular origin.
Contribution
It demonstrates how a time-dependent cosmological constant can be realized in a 2D model, leading to nonsingular cosmological behavior.
Findings
Cosmological constant approaches zero asymptotically.
Model induces nonsingular behavior at the origin.
Provides a mechanism for a dynamic cosmological term.
Abstract
We study the obtainment of a time-dependent cosmological constant at D=2 in a model based on the Jackiw-Teitelboim cosmology. We show that the cosmological term goes to zero asymptotically and can induce a nonsingular behavior at the origin.
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