dorsal/arxiv
View SchemaAxion misalignment as a synchronization phenomenon
| Authors | Veronica Sanz |
|---|---|
| Categories | |
| ArXiv ID | 2601.07836vv1 |
| URL | https://arxiv.org/abs/2601.07836 |
| License | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Abstract
We propose a dynamical reinterpretation of axion misalignment as an emergent collective phenomenon. Drawing an explicit parallel between axion field dynamics and synchronization in coupled oscillator systems, we show that a macroscopic axion phase can arise dynamically from initially incoherent configurations through gradient-driven ordering in an expanding Universe. In this framework, the misalignment angle is not a fundamental initial condition but a collective variable that becomes well defined only once phase coherence develops. Using a simple lattice model, we illustrate how the collective phase is selected prior to the onset of axion oscillations, providing a dynamical basis for the standard misalignment picture. This perspective offers a new way of organizing axion initial-condition sensitivity, reframes anthropic small-angle arguments in terms of phase-ordering efficiency, and suggests a broader connection between fine-tuning and emergent collective dynamics in the early Universe.
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"abstract": "We propose a dynamical reinterpretation of axion misalignment as an emergent collective phenomenon. Drawing an explicit parallel between axion field dynamics and synchronization in coupled oscillator systems, we show that a macroscopic axion phase can arise dynamically from initially incoherent configurations through gradient-driven ordering in an expanding Universe. In this framework, the misalignment angle is not a fundamental initial condition but a collective variable that becomes well defined only once phase coherence develops. Using a simple lattice model, we illustrate how the collective phase is selected prior to the onset of axion oscillations, providing a dynamical basis for the standard misalignment picture. This perspective offers a new way of organizing axion initial-condition sensitivity, reframes anthropic small-angle arguments in terms of phase-ordering efficiency, and suggests a broader connection between fine-tuning and emergent collective dynamics in the early Universe.",
"arxiv_id": "2601.07836",
"authors": [
"Veronica Sanz"
],
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"astro-ph.CO",
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"license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
"title": "Axion misalignment as a synchronization phenomenon",
"url": "https://arxiv.org/abs/2601.07836",
"version": "v1"
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