Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 34: Color Centers II

Q 34.5: Vortrag

Mittwoch, 13. März 2024, 15:45–16:00, HS 1221

Heralded initialization of charge state and optical transition frequency of diamond tin-vacancy centers — •Julia Maria Brevoord, Lorenzo De Santis, Takashi Yamamoto, Matteo Pasini, Nina Codreanu, Tim Turan, Hans Beukers, Christopher Waas, and Ronald Hanson — QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft 2628 CJ, Netherlands

Diamond Tin-Vacancy centers have emerged as a promising platform for quantum information science and technology. A key challenge for their use in more complex quantum experiments and scalable applications is the ability to prepare the center in the desired charge state with the optical transition at a pre-defined frequency. Here we report on heralding such successful preparation using a combination of laser excitation, photon detection, and real-time logic. We verify the power of this method by measuring strongly improved quantum optical performance, showing its direct relevance for future quantum applications that rely on photon interference such as remote entanglement generation.

Keywords: Diamond Color Centers; Quantum Communication; Quantum Networks