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Physics Faculty Publications and Presentations

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2015

Astrobiology

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Full-Text Articles in Physics

Homogeneous Cosmology With Aggressively Expanding Civilizations, S. Jay Olson Nov 2015

Homogeneous Cosmology With Aggressively Expanding Civilizations, S. Jay Olson

Physics Faculty Publications and Presentations

In the context of a homogeneous Universe, we note that the appearance of aggressively expanding advanced life is geometrically similar to the process of nucleation and bubble growth in a first-order cosmological phase transition. We exploit this similarity to describe the dynamics of life saturating the Universe on a cosmic scale, adapting the phase transition model to incorporate probability distributions of expansion and resource consumption strategies. Through a series of numerical solutions spanning several orders of magnitude in the input assumption parameters, the resulting cosmological model is used to address basic questions related to the intergalactic spreading of life, dealing …