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arXiv · 1711.00738

Multi-mode double-bright EIT cooling

Nils Scharnhorst·Javier Cerrillo·Johannes Kramer·Ian D. Leroux·Jannes B. Wübbena·Alex Retzker·Piet O. Schmidt
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Abstract

We developed a multi-mode ground state cooling technique based on electromagnetically-induced transparency (EIT). By involving an additional ground and excited state, two individually adjustable bright states together with a dark state are created. While the dark state suppresses carrier scattering, the two bright states are brought into resonance with spectrally separated motional red sidebands. With this double-bright EIT (D-EIT) cooling scheme, we experimentally demonstrate ground state cooling of all three motional modes of a trapped $^{40}$Ca$^+$ with a single cooling pulse. The approach is scalable to more than two bright states by introducing laser couplings to additional states.

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Nils Scharnhorst, Javier Cerrillo, Johannes Kramer, Ian D. Leroux, Jannes B. Wübbena, Alex Retzker, Piet O. Schmidt. 2017-11-02. Multi-mode double-bright EIT cooling. https://arxiv.org/abs/1711.00738

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