Cosmology of the Jackiw-Teitelboim model
M. Cadoni, S. Mignemi
TL;DR
This paper explores the cosmological implications of the two-dimensional Jackiw-Teitelboim model, focusing on how different matter couplings and the dilaton field influence universe properties, including the potential for finite initial sizes.
Contribution
It analyzes two matter coupling choices in the JT model and highlights the dilaton field's role in determining universe characteristics, such as initial size.
Findings
Finite initial universe size can occur under certain conditions.
The matter coupling choice significantly affects cosmological solutions.
The dilaton field influences the evolution and properties of the universe.
Abstract
We investigate the cosmology of the two-dimensional Jackiw-Teitelboim model. Since the matter coupling is not defined uniquely, we consider two possible choices. The dilaton field plays an important role in the discussion of the properties of the solutions. In particular, the possibility of universes having a finite initial size emerges.
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