Optical Pumping of TeH+: Implications for the Search for Varying mp/me

Autor: Stollenwerk, Patrick, Kokish, Mark G., de Oliveira-Filho, Antonio G. S., Ornellas, Fernando R., Odom, Brian C.
Rok vydání: 2018
Předmět:
Zdroj: Atoms 2018, 6, 53
Druh dokumentu: Working Paper
DOI: 10.3390/atoms6030053
Popis: Molecular overtone transitions provide optical frequency transitions sensitive to variation in the proton-to-electron mass ratio ($\mu\equiv m_p/m_e$). However, robust molecular state preparation presents a challenge critical for achieving high precision. Here, we characterize infrared and optical-frequency broadband laser cooling schemes for TeH$^+$, a species with multiple electronic transitions amenable to sustained laser control. Using rate equations to simulate laser cooling population dynamics, we estimate the fractional sensitivity to $\mu$ attainable using TeH$^+$. We find that laser cooling of TeH$^+$ can lead to significant improvements on current $\mu$ variation limits.
Databáze: arXiv