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- Coopmans, T. (author), Knegjens, R. (author), Dahlberg, A. (author), Maier, D. (author), Nijsten, L. (author), de Oliveira Filho, J. (author), Papendrecht, M. (author), Rabbie, J. (author), Rozp?dek, F. (author), Skrzypczyk, M. (author), Wubben, L. (author), de Jong, W. (author), Podareanu, D. (author), Torres-Knoop, A. (author), Elkouss, D. (author), Wehner, S. (author) article 2021
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Simon, B.G. (author), Kurdi, S. (author), La, H. (author), Bertelli, I. (author), Carmiggelt, J.J. (author), Ruf, M. (author), de Jong, N. (author), van den Berg, H. (author), Katan, A.J. (author), van der Sar, T. (author)Controlling magnon densities in magnetic materials enables driving spin transport in magnonic devices. We demonstrate the creation of large, out-of-equilibrium magnon densities in a thin-film magnetic insulator via microwave excitation of coherent spin waves and subsequent multimagnon scattering. We image both the coherent spin waves and the...article 2021
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Ruf, M. (author), IJspeert, M. (author), van Dam, S. (author), de Jong, N. (author), van den Berg, J.H. (author), Evers, G. (author), Hanson, R. (author)Diamond membrane devices containing optically coherent nitrogen-vacancy (NV) centers are key to enable novel cryogenic experiments such as optical ground-state cooling of hybrid spin-mechanical systems and efficient entanglement distribution in quantum networks. Here, we report on the fabrication of a (3.4 ± 0.2) μm thin, smooth (surface...article 2019
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Hermans, S. (author), Tchebotareva, A. (author), Humphreys, P. (author), Voigt, D. (author), Harmsma, P. (author), Cheng, L. (author), Verlaan, A. (author), Dijkhuizen, N. (author), de Jong, W. (author), Dréau, A. (author), Hanson, R. (author)We experimentally demonstrate the preservation of entanglement between an NV spin and a photon upon quantum frequency conversion to the Telecom band. This is a crucial step in realizing long-distance quantum networks.conference paper 2019