Erratum: Quantifying and Controlling Entanglement in the Quantum Magnet Cs2CoCl4 (Physical Review Letters (2021) 127 (037201) DOI: 10.1103/PhysRevLett.127.037201)

Two mistakes were made in our Letter concerning the definition of the fluctuation-dissipation theorem. Since the theoretical background is discussed in the related Erratum [1] (for Ref. [2], which was affected by the same issues), we will only state the required corrections here. As we only analyzed positive energy transfer data, the fluctuation-dissipation theorem stated in the text (Formula Presented) (Figure Presented) We thank Varun Menon for originally bringing this issue to our attention in the context of Refs. [1,2].