Gravitational time dilation measured on centimetre and millimetre scales in atomic clocks
Physics World
FEBRUARY 19, 2022
Two independent teams of researchers in the US have used differential measurement techniques to remove laser noise from atomic clocks, allowing them to observe tiny differences in how gravity affects atoms separated by a centimetre or less in height. One of the teams hopes that its practical technique could allow atomic clocks to be used more widely in applications such as geodesy and gravitational wave detection.
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