Streltsov, K. (2017). Coherent dynamics of a spin ensemble [Diploma Thesis, Technische Universität Wien]. reposiTUm. https://doi.org/10.34726/hss.2017.38841
In this thesis the theoretical and experimental treatment of the dynamics of a large ensemble of two-level systems that are equally coupled to a bosonic mode is presented. The connection to superradiance in open quantum systems is explored. The experimental system is based on a 3D cavity with a reduced mode volume and an ensemble of Nitrogen-Vacancy centers in diamond. With this system a coherent population inversion in a macroscopic ensemble is reached for the first time. The experiment is shown to agree well with the semiclassical theory.
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