A new heterodyne interferometry scheme allows detection of the nuclear gravitational redshift in 57Fe with percent-level precision on deviations from general relativity using few-meter vertical baselines and day-scale measurements.
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Nuclear Heterodyne Interferometry for Gravitational Spectroscopy
A new heterodyne interferometry scheme allows detection of the nuclear gravitational redshift in 57Fe with percent-level precision on deviations from general relativity using few-meter vertical baselines and day-scale measurements.