Freiburg 2019 – wissenschaftliches Programm
FM 40.2: Poster
Dienstag, 24. September 2019, 16:30–18:30, Tents
Individually controlled Ion Trap Arrays for Quantum Simulations — •Deviprasath Palani, Frederick Hakelberg, Philip Kiefer, Lennart Guth, Jan-Philipp Schröder, Matthias Wittemer, Ulrich Warring, and Tobias Schaetz — Uni Freiburg
Trapped ions present a promising system for quantum simulations . Surface-electrode traps in contrast to conventional ion traps offer the advantage of scalability to larger system size and dimension while maintaining individual control:
Dedicated radio-frequency electrode shapes allow the creation of two-dimensional trap arrays  while control electrodes allow localized manipulation of the trapping potential tuning motional frequencies and mode orientations .
Our setup consists of a basic but scalable array of three Mg+ ions individually trapped in an equilateral triangle with 40 µm inter-site distance. We present the first realization of inter-site coupling, until now only realized for one-dimensional arrangements . We demonstrate its tuning in real time, and show interference of large coherent states . Furthermore we employ the individual control for modulation of the local trapping potentials to realize phonon-assisted tunnelling between adjacent sites .
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