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arXiv · 2111.10942

Low Energy Effective Theory for Axion Strings

Michael Dine
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Abstract

We consider aspects of the low energy description of global cosmic strings. In the non-relativistic limit, we study the extent to which these are described by the combination of the Nambu-Gotto and Kalb-Ramond actions. While in a formal sense this is the case for infiniately long strings, for more realistic situations, the collective coordinates of the system do not provide a complete description for more than brief intervals; as time evolves it becomes necessary to include low momentum goldstone excitations as well.

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Michael Dine. 2021-11-22. Low Energy Effective Theory for Axion Strings. https://doi.org/10.1088/1475-7516%2F2022%2F09%2F037

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