<div class="csl-bib-body">
<div class="csl-entry">Käding, C. (2025). Frequency shifts induced by light scalar fields. <i>Physics of the Dark Universe</i>, <i>47</i>, 1–7. https://doi.org/10.1016/j.dark.2024.101788</div>
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dc.identifier.issn
2212-6864
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/207070
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dc.description.abstract
Light scalar fields are frequently used in modern physics, for example, as candidates for dark energy or dark matter. Open quantum dynamical effects, like frequency shifts, induced by such fields in probe particles used in interferometry experiments might open up new perspectives for constraining such models. In this article, we consider a probe scalar particle as a rough approximation for an atom in matter wave interferometry and discuss the frequency shifts induced by interactions with an environment comprising either one of two screened scalar field models: chameleons or symmetrons. For the 𝑛 = −4 chameleon, we revise a previously obtained expression for the induced frequency shift, but confirm that it can likely not be used to obtain new constraints. However, for symmetrons, we find that induced frequency shifts have the potential to tightly constrain previously unreachable parts of the parameter space.
