4D Seminar — Harikrishnan Ramani (Stanford) “Dark matter detection with trapped ions”

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Abstract: Dark Photon Dark matter and Millicharged particle dark matter are two of the simplest and popular models of dark matter and are looked for in various experiments. Yet, there continue to exist inaccessible regions in interaction and mass parameter space for these models. In this talk I propose a new way to detect the dark electric fields produced by these dark matter candidates: the remarkably stable trapped ions, tools developed in the context of quantum metrology and quantum computing. I present preliminary data from pilot experiments as well as steps to improve sensitivity in the future.