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  1. Article

    Open Access

    Deterministic spin-photon entanglement from a trapped ion in a fiber Fabry–Perot cavity

    The development of efficient network nodes is a key element for the realization of quantum networks which promise great capabilities as distributed quantum computing or provable secure communication. We report...

    Pascal Kobel, Moritz Breyer, Michael Köhl in npj Quantum Information (2021)

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  2. No Access

    Chapter

    Monolayer Graphene as Dissipative Membrane in an Optical Resonator

    We experimentally demonstrate coupling of an atomically thin, free-standing graphene membrane to an optical cavity. By changing the position of the membrane along the standing-wave field of the cavity, we tail...

    Hendrik M. Meyer, Moritz Breyer, Michael Köhl in Exploring the World with the Laser (2018)

  3. No Access

    Article

    Monolayer graphene as dissipative membrane in an optical resonator

    We experimentally demonstrate coupling of an atomically thin, free-standing graphene membrane to an optical cavity. By changing the position of the membrane along the standing-wave field of the cavity, we tail...

    Hendrik M. Meyer, Moritz Breyer, Michael Köhl in Applied Physics B (2016)

  4. Article

    Correction: Corrigendum: Universal spin dynamics in two-dimensional Fermi gases

    Nature Phys. 9, 405–409 (2013); published online 26 May 2013; corrected online 4 June 2013; corrected after print 23 December 2013 In the version of this Letter originally published, the stated value for the d...

    Marco Koschorreck, Daniel Pertot, Enrico Vogt, Michael Köhl in Nature Physics (2014)

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  5. Article

    Universal spin dynamics in two-dimensional Fermi gases

    Experiments with ultracold atomic gases can provide insight into more general phenomena, such as spin transport. A study of spin diffusion in a two-dimensional Fermi gas measured the lowest spin diffusion cons...

    Marco Koschorreck, Daniel Pertot, Enrico Vogt, Michael Köhl in Nature Physics (2013)

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  6. Article

    Controlling chemical reactions of a single particle

    Chemical reactions between a single trapped ion and a condensate of ultracold neutral atoms are investigated by controlling the quantum states of both ion and atoms—revealing the effect of the hyperfine intera...

    Lothar Ratschbacher, Christoph Zipkes, Carlo Sias, Michael Köhl in Nature Physics (2012)

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  7. No Access

    Chapter

    Criticality and Correlations in Cold Atomic Gases

    We study the phase transition of Bose—Einstein condensation in a dilute atomic gas very close to the critical temperature. The critical regime we enter is governed by fluctuations extending far beyond the leng...

    Michael Köhl, Tobias Donner, Stephan Ritter… in Advances in Solid State Physics (2008)