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A: Fachverband Atomphysik
A 25: Poster IV
A 25.27: Poster
Mittwoch, 13. März 2024, 17:00–19:00, Tent A
Trapping Ion Coulomb Crystals in an Optical Lattice — •Daniel Hoenig1, Fabian Thielemann1, Wei Wu1, Thomas Walker1, Leon Karpa2, Amir Mohammadi1, and Tobias Schaetz1 — 1Albert-Ludwigs Universität Freiburg — 2Leibniz Universität Hannover
We present recent advancements in trapping 138Ba+ ions in a one-dimensional optical lattice at a wavelength of 532 nm and the first successful trapping of linear ion Coulomb crystals (N≤3) in such a trap array. The observed eigenfrequencies of the ions in the lattice and the increased robustness of the trapping probability against axial electric fields provide evidence for confinement of the ions at individual lattice sites.
As optical lattices are extendable in size and dimension, they might allow for the realization of ion-microtrap structures in 2D and 3D. This could enable new pathways towards analog quantum simulation of systems incorporating long-range interactions. Additionally, the absence of micromotion in optical traps could give them an edge over rf-traps in applications, where heating and decoherence induced by micromotion become limiting factors. This includes the study of atom-ion interactions at ultracold temperatures, as well as the creation and study of coherent superpositions of structural crystal phases and their entanglement.
Keywords: Trapped Ions; Optical Dipole Traps; Barium; Optical Lattice