Clock transitions versus Bragg diffraction in atom-interferometric dark-matter detection

verfasst von

Daniel Derr, Enno Giese

Abstract

Atom interferometers with long baselines are envisioned to complement the ongoing search for dark matter. They rely on atomic manipulation based on internal (clock) transitions or state-preserving atomic diffraction. Principally, dark matter can act on the internal as well as the external degrees of freedom to both of which atom interferometers are susceptible. We, therefore, study in this contribution the effects of dark matter on the internal atomic structure and the atom's motion. In particular, we show that the atomic transition frequency depends on the mean coupling and the differential coupling of the involved states to dark matter, scaling with the unperturbed atomic transition frequency and the Compton frequency, respectively. The differential coupling is only of relevance when internal states change, which makes detectors, e.g., based on single-photon transitions sensitive to both coupling parameters. For sensors generated by state-preserving diffraction mechanisms like Bragg diffraction, the mean coupling modifies only the motion of the atom as the dominant contribution. Finally, we compare both effects observed in terrestrial dark-matter detectors.

Organisationseinheit(en)

Institut für Quantenoptik

Externe Organisation(en)

Technische Universität Darmstadt

Typ

Artikel

Journal

AVS Quantum Science

Band

5

Anzahl der Seiten

12

Publikationsdatum

12.2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik, Physik der kondensierten Materie, Computernetzwerke und -kommunikation, Physikalische und Theoretische Chemie, Theoretische Informatik und Mathematik, Elektrotechnik und Elektronik

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2309.09538 (Zugang: Offen)
https://doi.org/10.1116/5.0176666 (Zugang: Offen)