SAMOP 2023 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 42: Poster III

Q 42.25: Poster

Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof

Photon correlations of trapped calcium ion crystal — •Zyad Shehata, Stefan Richter, Manuel Bojer, and Joachim von Zanthier — FAU Erlangen-Nürnberg, Quantum Optics and Quantum Information, Staudtstr. 1, 91058 Erlangen, Germany

Trapped ions are an important resource for quantum information science. Here, we study the collective light emission of trapped calcium ion crystals, in particular the photon auto- and cross-correlations. Simultaneous photon bunching and anti-bunching emerge from such systems [1]. In this work, we focus on the first-, second-, and third-order correlation functions of two- and three-ion crystals taking into account concrete experimental conditions, in particular the contrast-reducing Debye-Waller factor. Various illumination schemes of the ions are discussed in the context of the trap geometry, getting analytical and numerical solutions for the second- and third-order correlation functions, including predictions for their signal-to-noise ratio.

[1] S. Wolf, S. Richter, J. von Zanthier, F. Schmidt-Kaler, Light of Two Atoms in Free Space: Bunching or Antibunching?, Phys . Rev, Lett. 124, 063603 (2020)."