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Quantum Zeno-based detection and state engineering of ultracold polar molecules

Amit Jamadagni1,*, Silke Ospelkaus2, Luis Santos1, and Hendrik Weimer1

  • 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
  • 2Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany

  • *amit.jamadagni@itp.uni-hannover.de
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Phys. Rev. Research 3, 033208 – Published 2 September, 2021

DOI: https://doi.org/10.1103/PhysRevResearch.3.033208

Abstract

We present and analyze a toolbox for the controlled manipulation of ultracold polar molecules, consisting of detection of molecules, atom-molecule entanglement, and engineering of dissipative dynamics. Our setup is based on fast chemical reactions between molecules and atoms leading to a quantum Zeno-based collisional blockade in the system. We demonstrate that the experimental parameters for achieving high fidelities can be found using a straightforward numerical optimization. We exemplify our approach for a system composed of NaK molecules and Na atoms and we discuss the consequences of residual imperfections such as a finite strength of the quantum Zeno blockade.

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Phys. Rev. Research 3, 033208– Published 2 September, 2021
  • Received 21 June 2019
  • Revised 21 July 2021
  • Accepted 17 August 2021
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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