# Cosmological Models in Two Spacetime Dimensions

Source: [Cosmological Models in Two Spacetime Dimensions](<https://www.sota2.com/research/paper/68fa292e1e209131ce831cef>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T12:44:03.897Z

Authors: K.C.K. Chan, R.B. Mann

Published: 1992-10-26T19:45:32.000Z

## Abstract

Various physical properties of cosmological models in (1+1) dimensions are investigated. We demonstrate how a hot big bang and a hot big crunch can arise in some models. In particular, we examine why particle horizons do not occur in matter and radiation models. We also discuss under what circumstances exponential inflation and matter/radiation decoupling can happen. Finally, without assuming any particular equation of state, we show that physical singularities can occur in both untilted and tilted universe models if certain assumptions are satisfied, similar to the (3+1)-dimensional cases.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/gr-qc/9210015>)

[PDF](<https://arxiv.org/pdf/gr-qc/9210015.pdf>)