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Deterministic quantum state transfer of atoms in a random magnetic field

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  • Cold Matter and Quantum Gas
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Abstract

We propose a method for transferring atoms to a target quantum state for a multilevel quantum system with sequentially increasing, but otherwise unknown, energy splitting. This is achieved with a feedback algorithm that processes off-resonant optical measurements of state populations during adiabatic rapid passage in real time. As a demonstration, we reliably perform the state transfer |F = 2,mF = 2〉 → |1,1〉 → |2,1〉 for a sample of ultracold 87Rb in the presence of a random external magnetic field.

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Authors and Affiliations

  1. Department of Physics and QSO – Centre for Quantum Science, University of Otago, Dunedin, New Zealand

    Bianca J. Sawyer, Matthew Chilcott, Ryan Thomas, Amita B. Deb & Niels Kjærgaard

  2. The Dodd Walls Centre for Photonic and Quantum Technologies, Dunedin, New Zealand

    Bianca J. Sawyer, Matthew Chilcott, Ryan Thomas, Amita B. Deb & Niels Kjærgaard

Authors
  1. Bianca J. Sawyer
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  2. Matthew Chilcott
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  3. Ryan Thomas
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  4. Amita B. Deb
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  5. Niels Kjærgaard
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Corresponding authors

Correspondence to Bianca J. Sawyer or Niels Kjærgaard.

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Sawyer, B.J., Chilcott, M., Thomas, R. et al. Deterministic quantum state transfer of atoms in a random magnetic field. Eur. Phys. J. D 73, 160 (2019). https://doi.org/10.1140/epjd/e2019-90541-2

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  • DOI: https://doi.org/10.1140/epjd/e2019-90541-2

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