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Deterministic quantum state transfer of atoms in a random magnetic field

  • Bianca J. SawyerEmail author
  • Matthew Chilcott
  • Ryan Thomas
  • Amita B. Deb
  • Niels KjærgaardEmail author
Regular Article Cold Matter and Quantum Gas

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.

Graphical abstract

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Copyright information

© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Physics and QSO – Centre for Quantum ScienceUniversity of OtagoDunedinNew Zealand
  2. 2.The Dodd Walls Centre for Photonic and Quantum TechnologiesDunedinNew Zealand

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