Greenhorn Meeting 2026

Session

Trapped Ions

8 Oct 2026, 10:30

Institute for Quantum Physics

23. Towards optical excitation of a spin-forbidden clock transition with structured light using a photonic-integrated ion trap

M. Ludwig

08/10/2026, 10:30

Talk

Trapped ions are widely used for optical clocks [1], quantum computing [2], and tests of fundamental physics [3], offering optical transitions from the ultraviolet to the infrared. However, conventional free-space optics limit alignment stability and scalability, constraining the full exploitation of these systems. Photonic integration addresses these limitations by replacing bulky free-space...

32. Towards Scalable Trapped-Ion Quantum Computing with an X-junction Trap

Christian Miguel Karres (Johannes Gutenberg Universität-Mainz)

08/10/2026, 10:45

Talk

Alongside high-fidelity logic gates and quantum-error correction (QEC), scalability remains a primary benchmark for practical quantum computation (QC). Shuttling-based trapped-ion architectures represent one of the most advanced platforms for executing quantum algorithms. However, implementations relying on linear ion traps have limited scalability and significant shuttling overhead....

35. Cooling dynamics of C₆₀⁺ in an RF Paul trap: deep ion–atom wells and RF collisional heating

Yu Wang (University of Ülm)

08/10/2026, 11:00

Talk

Buckminsterfullerene C₆₀ is a benchmark large molecule — highly symmetric, rigid, and readily sublimed and ionized — making its cation C₆₀⁺ one of the most accessible large molecular ions to produce. It is also the first identified molecular carrier of the diffuse interstellar bands, assigned through cold gas-phase spectroscopy, so buffer-gas cooling of C₆₀⁺ in RF traps directly underpins such...