Speaker
Description
Trapped Rydberg ions [1] are a novel approach for quantum information processing. By combining the high degree of control of trapped ions with the strong dipolar interaction of Rydberg atoms, fast and motion-independent entangling gates may be realized in large ion crystals.
In our experiment, we excite trapped 88Sr+ ions to Rydberg states. We have observed strong interaction between microwave-dressed Rydberg ions. We have realized a controlled phase gate between two ions in a two-ion crystal [2] and in a 12-ion crystal, both within only 700 ns. This fast gate does not rely on ion motion, so it could also be applied in longer ion crystals. These are fundamental steps towards a trapped Rydberg ion quantum computer or simulator.
References
[1] M. Müller, et al. New J. Phys. 10, 093009 (2008).
[2] CZ, et al. Nature 580, 345 (2020).
