SAMOP 2023 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 19: Implementations: Ions and Atoms (joint session QI/Q)
QI 19.5: Vortrag
Mittwoch, 8. März 2023, 12:15–12:30, F428
Entangling scheme for Rydberg ion crystals using electric kicks in radial direction — •Han Bao1, Jonas Vogel1, Alexander Schulze-Makuch1, Ulrich Poschinger1, and Ferdinand Schmidt-Kaler1,2 — 1QUANTUM, Institut für Physik, Universität Mainz, D-55128 Mainz, Germany — 2Helmholtz-Institut Mainz, D-55128 Mainz, Germany
Due to the strong dipole interaction between Rydberg atoms, fast entangling gates have been achieved both in neutral atoms [1] and trapped ions [2]. A second unique feature of Rydberg states is their high electric polarizability. For trapped ions, Rydberg states electric polarizability may lead to a change of the secular frequency [3]. Such state dependent secular frequency can establish entanglement [4]. Here, we show that using electric kicks in the radial direction demands a 100 times lower voltage, thus much more feasible for an experimental realization. Accordingly, as lower motional are transiently excited only, the scheme becomes more robust. We also show scaling the method up for larger ions crystals, using a complex sequence of electric kicks, such that finally the motion state is recovered back.
We discuss the status of the experimental realization the electric kick entanglement generation.
[1]Levine et al., Phys. Rev. Lett. 123, 170503 (2019)
[2]Zhang et al., Nature 580, 345 (2020)
[3]Schmidt-Kaler et al., New J. Phys. 13, 075014 (2011)
[4]Vogel et al., Phys. Rev. Lett. 123, 153603 (2019)