Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 41: Poster: Quantum Optics and Photonics II

Q 41.8: Poster

Wednesday, March 13, 2019, 16:15–18:15, S Fobau Physik

Trap chip for 2D arrays of atomic ions interacting via MAGIC — •Ivan Boldin, Alexander Kraft, Moritz Porst, Elham Esteki, Bogdan Okhrimenko, and Christof Wunderlich — University of Siegen, Siegen, Germany

We designed a novel chip for trapping atomic ions in a 2-dimensional array with electrodynamic fields. The electrode structures allow for varying the the ion-surface separation and the trap chip has resonant structures incorporated to enhance the microwave-frequency magnetic fields to be used for all coherent operations on the hyperfine manifold of Yb+ ions. The ions interact via magnetic gradient induced coupling (MAGIC) (1). For this experiment a custom aluminum vacuum chamber is used to reduce the effect of the chamber on ambient magnetic fields at the trapped ions* location. In addition, a mu-metal shield is integrated inside the chamber to protect hyperfine states from magnetic field noise. The experimental setup also includes an Ar+ ion gun for in situ cleaning of the ion trap surface in order to decrease electric field noise from the surface of the electrodes. We present the current status of this experiment.

References: 1) Ch. Piltz, Th. Sriarunothai, S. Ivanov, S. Wölk, Ch. Wunderlich, Science Advances 2 e1600093 (2016).