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Synthetic clock transitions via continuous dynamical decoupling



Ian B. Spielman, Nathan Lundblad, Ana Valdes-Curiel, Dimitrius Trypogeorgos


Decoherence of quantum systems due to uncontrolled fluctuations of the environment presents fundamental obstacles in quantum science. `Clock' transitions which are insensitive to such fluctuations are used to improve coherence, however, they are not present in all systems or for arbitrary system parameters. Here, we create a trio of synthetic clock transitions using continuous dynamical decoupling in a spin-1 Bose-Einstein condensate in which we observe a reduction of sensitivity to magnetic field noise of up to four orders of magnitude; this work complements the parallel work by Anderson et al. (submitted, 2017). In addition, using a concatenated scheme, we demonstrate suppression of sensitivity to fluctuations in our control fields. These field-insensitive states represent an ideal foundation for the next generation of cold atom experiments focused on fragile many-body phases relevant to quantum magnetism, artificial gauge fields, and topological matter.
Physical Review A


Atomic clock states, ultracold atoms


Spielman, I. , Lundblad, N. , Valdes-Curiel, A. and Trypogeorgos, D. (2018), Synthetic clock transitions via continuous dynamical decoupling, Physical Review A, [online], (Accessed June 15, 2024)


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Created January 16, 2018, Updated July 2, 2018