Leon Karpa
University of Freiburg
30 Papers
92 Citations
Leon Karpa is an academic researcher from University of Freiburg. The author has contributed to research in topics: Ion & Dipole. The author has an hindex of 11, co-authored 30 publications. Previous affiliations of Leon Karpa include Leibniz University of Hanover & University of Bonn.
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Papers
A Stern–Gerlach experiment for slow light
TL;DR: In this paper, it was shown that light passing through a Rubidium gas cell, under the conditions of electromagnetically induced transparency, is deflected by a small magnetic field gradient.
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Observation of Feshbach resonances between a single ion and ultracold atoms
Pascal Weckesser,Fabian Thielemann,Dariusz Wiater,Agata Wojciechowska,Leon Karpa,Krzysztof Jachymski,Michał Tomza,Thomas Walker,Tobias Schaetz +8 more
TL;DR: In this paper, the authors demonstrate Feshbach resonances between ions and atoms, using magnetically tunable interactions between $−138$Ba$−+}$ ions and $−6}$Li atoms.
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One-dimensional array of ion chains coupled to an optical cavity
Marko Cetina,Alexei Bylinskii,Leon Karpa,Dorian Gangloff,Kristin M. Beck,Yufei Ge,Matthias Scholz,Andrew T. Grier,Isaac L. Chuang,Vladan Vuletic +9 more
TL;DR: In this paper, an optical cavity is integrated with an amicrofabricated planar electrode iontrap, allowing the trapping of up to 50 separate ion chains aligned with the cavity and spaced by 160 µm in a one-dimensional array along the cavity axis.
Long lifetimes and effective isolation of ions in optical and electrostatic traps
Alexander Lambrecht,Julian Schmidt,Pascal Weckesser,Markus Debatin,Leon Karpa,Tobias Schaetz +5 more
TL;DR: In this paper, the authors demonstrate that optical trapping and isolation of ions can be performed on a level comparable to neutral atoms, boosting their lifetime by three orders of magnitude compared to previous work and measuring an upper bound of the total heating rate.
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Suppression of ion transport due to long-lived subwavelength localization by an optical lattice.
TL;DR: The localization of an ion by a one-dimensional optical lattice in the presence of an applied external force opens new possibilities for studying many-body systems with long-range interactions in periodic potentials, as well as fundamental models of friction.
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