Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 9: Ultra-cold atoms, ions and BEC (with Q)
A 9.12: Poster
Montag, 29. Februar 2016, 16:30–19:00, Empore Lichthof
Energy and mass transfer between zig-zag chains trapped in a double well potential — •Andrea Klumpp1, Alexandrea Zampetaki1, and Peter Schmelcher1,2 — 1ZOQ Universität Hamburg — 2ILP Universität Hamburg
Ion traps are versatile tools for experiments in various fields, such as spectroscopy, quantum computing, molecular physics and biophysics [1]. The development of micro-fabricated segmented Paul traps opens up new fields for research relating, among others, to the transport of ions [2], the splitting [3] and also the coupling of ion crystals [4].
In our work we investigate the dynamics of two trapped ion crystals in a three dimensional double well potential with a strong confinement perpendicular to the x-z plane as in the case of a planar trap. The initial state of the ions in our setup is given by well separated zig-zag configurations in both wells. The crystals are built of 13 in the first well and 20 in the second. After lowering the barrier between the wells, we observe mass and energy transfer between the crystals as a result of the asymmetry in the initial crystal sizes. In addition, we detect oscillations propagating into the big crystal like a shock wave, while the small ion crystal melts completely.
[1] Major et al., Charged particle traps I+II Springer,(2005 + 2009)
[2] Huber et al., NJP 10, 013004 (2008)
[3] Ruster et al., Phys. Rev. A 90, 033410 (2014)
[4] Klumpp et al., arXiv:1508.07979