Time dilation constitutes a crucial aspect of Lorentz invariance within special relativity and undergoes constant scrutiny through numerous Ives-Stilwell-type experiments employing the Doppler effect.In our study,we e...Time dilation constitutes a crucial aspect of Lorentz invariance within special relativity and undergoes constant scrutiny through numerous Ives-Stilwell-type experiments employing the Doppler effect.In our study,we employed optical Ramsey spectroscopy on a Li^(+)ion beam to enhance the precision of measuring the intrinsic transition frequency 23S1-23P2 to the level of four parts in 1010 with speed of 0.00035c.Our findings reconciled an existing 2 MHz disparity between collinear and perpendicular laser spectroscopy.Furthermore,in conjunction with previous studies on Li^(+)ion beams traveling at speeds of 0.064c and 0.338c[Nat.Phys.3,861(2007);Phys.Rev.Lett.113,120405(2014)],we updated the Robertson-Mansouri-Sexl parameterαto be(-10.0±9.9)×10^(-8)and(-2.9±2.0)×10^(-8),respectively.展开更多
基金National Natural Science Foundation of China(92265206,12121004,12393823,11934014,12247150,12175076)CAS Project for Young Scientists in Basic Research(YSBR055,YSBR085)+1 种基金Natural Science Foundation of Hubei Province(2022CFA013)CAS Youth Innovation Promotion Association(Y2022099).
文摘Time dilation constitutes a crucial aspect of Lorentz invariance within special relativity and undergoes constant scrutiny through numerous Ives-Stilwell-type experiments employing the Doppler effect.In our study,we employed optical Ramsey spectroscopy on a Li^(+)ion beam to enhance the precision of measuring the intrinsic transition frequency 23S1-23P2 to the level of four parts in 1010 with speed of 0.00035c.Our findings reconciled an existing 2 MHz disparity between collinear and perpendicular laser spectroscopy.Furthermore,in conjunction with previous studies on Li^(+)ion beams traveling at speeds of 0.064c and 0.338c[Nat.Phys.3,861(2007);Phys.Rev.Lett.113,120405(2014)],we updated the Robertson-Mansouri-Sexl parameterαto be(-10.0±9.9)×10^(-8)and(-2.9±2.0)×10^(-8),respectively.
