Chiara Brandenstein
Ph.D. Student in Physics, admitted Autumn 2023
All Publications
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Coupling of a Nuclear Transition to a Surface Acoustic Wave
PHYSICAL REVIEW LETTERS
2026; 136 (18)
View details for DOI 10.1103/tc97-98f7
View details for Web of Science ID 001767601800009
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Coupling of a Nuclear Transition to a Surface Acoustic Wave.
Physical review letters
2026; 136 (18): 183801
Abstract
Mechanical modulation of recoilless nuclear transitions allows the dynamic control of γ-ray emission and absorption. Accessing modulation frequencies well above the nuclear linewidth enables coherent manipulation of the nuclear response. Here we demonstrate high-frequency control via efficient coupling of a film of enriched ^{57}Fe to a 97.9 MHz surface acoustic wave, nearly 2 orders of magnitude higher than the nuclear linewidth. The mechanical drive produces a comb of absorption sidebands in the Mössbauer spectrum, reflecting the periodic time modulation of the nuclear transitions. This constitutes the highest frequency mechanically driven Mössbauer resonance to date. Our solid-state, monolithic platform establishes a new interface between nuclear transitions and high-frequency acoustics, with applications in γ-ray quantum optics and precision nuclear spectroscopy.
View details for DOI 10.1103/tc97-98f7
View details for PubMedID 42172399
https://orcid.org/0009-0004-9538-4795