Prospects of detectingme∕mpvariance using vibrational transition frequencies ofΣ2-state molecules
Prospects of detectingme∕mpvariance using vibrational transition frequencies ofΣ2-state molecules
复制标题
利用Σ2态分子振动跃迁频率检测me∕mpvariance的前景
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Kajita
中科院分区：
文献类型：
--
作者：
M. Kajita
This paper discusses the possibility of measuring the variance in the electron-to-proton mass ratio $ensuremath{eta}$ using the $ensuremath{mid}Xphantom{
ule{0.2em}{0ex}}^{2}ensuremath{Sigma}$, ${n}_{v}=0$, $N=0$, $J=1∕2$, $F=1$, ${M}_{F}=1⟩ensuremath{
ightarrow}ensuremath{mid}Xphantom{
ule{0.2em}{0ex}}^{2}ensuremath{Sigma}$, ${n}_{v}=1$ or 2, $N=0$, $J=1∕2$, $F=1,{M}_{F}=1⟩$ transition frequencies of magnetically trapped cold $^{24}mathrm{MgH}$ or $^{40}mathrm{CaH}$ molecules. The uncertainty in this transition frequency can potentially be lower than ${10}^{ensuremath{-}15}$, which makes it possible to measure the variance in $ensuremath{eta}$. The $^{24}mathrm{MgH}$ transition is more advantageous for measurement than the $^{40}mathrm{CaH}$ transition, because of the lower collision-loss rate, light shift, and collision shift.
This paper discusses the possibility of measuring the variance in the electron-to-proton mass ratio $ensuremath{eta}$ using the $ensuremath{mid}Xphantom{
ule{0.2em}{0ex}}^{2}ensuremath{Sigma}$, ${n}_{v}=0$, $N=0$, $J=1∕2$, $F=1$, ${M}_{F}=1⟩ensuremath{
ightarrow}ensuremath{mid}Xphantom{
ule{0.2em}{0ex}}^{2}ensuremath{Sigma}$, ${n}_{v}=1$ or 2, $N=0$, $J=1∕2$, $F=1,{M}_{F}=1⟩$ transition frequencies of magnetically trapped cold $^{24}mathrm{MgH}$ or $^{40}mathrm{CaH}$ molecules. The uncertainty in this transition frequency can potentially be lower than ${10}^{ensuremath{-}15}$, which makes it possible to measure the variance in $ensuremath{eta}$. The $^{24}mathrm{MgH}$ transition is more advantageous for measurement than the $^{40}mathrm{CaH}$ transition, because of the lower collision-loss rate, light shift, and collision shift.