Kavli Affiliate: Giorgio Gratta
| First 5 Authors: Albert Nazeeri, Albert Nazeeri, , ,
| Summary:
Mechanical modulation of recoilless nuclear transitions allows the dynamic
control of gamma-ray emission and absorption. Accessing modulation
frequencies well above the nuclear linewidth enables coherent manipulation of
the nuclear response. Here we demonstrate such control by coupling a film of
enriched 57Fe to a 97.9 MHz surface acoustic wave, which is nearly two orders
of magnitude faster than the nuclear linewidth. The mechanical drive produces a
comb of absorption sidebands in the M"ossbauer spectrum, consistent with
coherent phase modulation of the nuclear transition. This constitutes the
fastest phonon-driven control of M"ossbauer resonances to date. Our
solid-state, monolithic platform establishes a new interface between nuclear
transitions and high-frequency acoustics, with applications in gamma-ray
quantum optics and precision nuclear spectroscopy.
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