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arXiv · 2503.04949

Oscillating scalar potential and its implications for cosmic neutrino background searches

Yechan Kim·Hye-Sung Lee
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Abstract

We propose a novel mechanism in which an external oscillatory wave modulates the mass-squared term of a scalar potential, periodically switching its sign. As a result of this "potential oscillation," the vacuum transitions between symmetry-broken and symmetry-restored phases. This repeated toggling leads to a time-varying vacuum state with rich phenomenological consequences, driven by the scalar field's couplings to other sectors. As a concrete illustration, we demonstrate how these oscillations can open a new avenue for probing the cosmic neutrino background.

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Yechan Kim, Hye-Sung Lee. 2025-03-06. Oscillating scalar potential and its implications for cosmic neutrino background searches. https://arxiv.org/abs/2503.04949

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