Synthetic clock transitions via continuous dynamical decoupling

Published

January 16, 2018

Author(s)

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

Abstract

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.

Citation

Physical Review A

Pub Type

Journals

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Keywords

Atomic clock states, ultracold atoms

Citation

Spielman, I. , Lundblad, N. , Valdes-Curiel, A. and Trypogeorgos, D. (2018), Synthetic clock transitions via continuous dynamical decoupling, Physical Review A, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925747 (Accessed October 18, 2025)