Could the Universe Be Shaped Like a Doughnut? ...
The cosmos might share an unexpected characteristic with a doughnut: its shape, or more precisely, its topology. In a universe with a complex, doughnut-like topology, you could theoretically travel across the cosmos and end up back where you started. This possibility hasn't been ruled out yet,...
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ftdatacite:10.5281/zenodo.11658309 2024-09-15T18:24:56+00:00 Could the Universe Be Shaped Like a Doughnut? ... daniel 2024 https://dx.doi.org/10.5281/zenodo.11658309 https://zenodo.org/doi/10.5281/zenodo.11658309 unknown Zenodo https://dx.doi.org/10.5281/zenodo.11658308 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 article-journal Text ScholarlyArticle 2024 ftdatacite https://doi.org/10.5281/zenodo.1165830910.5281/zenodo.11658308 2024-07-03T11:19:11Z The cosmos might share an unexpected characteristic with a doughnut: its shape, or more precisely, its topology. In a universe with a complex, doughnut-like topology, you could theoretically travel across the cosmos and end up back where you started. This possibility hasn't been ruled out yet, according to physicists in the April 26 issue of Physical Review Letters. In a universe with trivial topology, any closed path you draw can be shrunk down to a point. For example, if you travel around Earth's equator, that loop can be squished by shifting your trip to the North Pole. However, a doughnut has a complex, or nontrivial, topology. A loop around the doughnut’s hole, for instance, cannot be shrunk down because the hole restricts how far you can compress it. While the universe is generally believed to have a trivial topology, this is not certain, the researchers argue. “I find it fascinating … the possibility that the universe might have nontrivial or different types of topologies, and then especially the fact ... Text North Pole DataCite |
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The cosmos might share an unexpected characteristic with a doughnut: its shape, or more precisely, its topology. In a universe with a complex, doughnut-like topology, you could theoretically travel across the cosmos and end up back where you started. This possibility hasn't been ruled out yet, according to physicists in the April 26 issue of Physical Review Letters. In a universe with trivial topology, any closed path you draw can be shrunk down to a point. For example, if you travel around Earth's equator, that loop can be squished by shifting your trip to the North Pole. However, a doughnut has a complex, or nontrivial, topology. A loop around the doughnut’s hole, for instance, cannot be shrunk down because the hole restricts how far you can compress it. While the universe is generally believed to have a trivial topology, this is not certain, the researchers argue. “I find it fascinating … the possibility that the universe might have nontrivial or different types of topologies, and then especially the fact ... |
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daniel |
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daniel Could the Universe Be Shaped Like a Doughnut? ... |
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daniel |
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daniel |
title |
Could the Universe Be Shaped Like a Doughnut? ... |
title_short |
Could the Universe Be Shaped Like a Doughnut? ... |
title_full |
Could the Universe Be Shaped Like a Doughnut? ... |
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Could the Universe Be Shaped Like a Doughnut? ... |
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Could the Universe Be Shaped Like a Doughnut? ... |
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could the universe be shaped like a doughnut? ... |
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Zenodo |
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2024 |
url |
https://dx.doi.org/10.5281/zenodo.11658309 https://zenodo.org/doi/10.5281/zenodo.11658309 |
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North Pole |
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North Pole |
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https://dx.doi.org/10.5281/zenodo.11658308 |
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Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
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https://doi.org/10.5281/zenodo.1165830910.5281/zenodo.11658308 |
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