Ground state EIT cooling of ${}^{171}$Yb${}^{+}$ ion

Abstract

The work propose a scheme of deep laser cooling of ${}^{171}$Yb${}^{+}$. The cooling is based on the effect of electromagnetically induced transparency (EIT) in a polychromatic field with three frequency components are resonant to optical transitions of the ${}^2{S}_{1/2}\to {}^2{P}_{1/2}$ line. The deep cooling down to the ground motional state in a trap allows for a significant suppression of the second order Doppler shift in frequency standards. Moreover, there is no need to use a magnetic field, which is required for Doppler cooling of ${}^{171}$Yb${}^{+}$ in a field with two-frequency component. The cooling without use of magnetic field is important for deep suppression of quadratic Zeeman shifts of clock transitions from uncontrolled residual magnetic fields.

References in corpus (6)

• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• Searching for dilaton dark matter with atomic clocks
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Cited by in corpus (1)

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