Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session F01: Poster Session I (4:00pm-6:00pm PT)
4:00 PM,
Tuesday, June 6, 2023
Room: Exhibit Hall C
Abstract: F01.00058 : Towards entangling gates between bosonic qubits in trapped ions
Presenter:
Martin Wagener
(ETH Zurich)
Authors:
Martin Wagener
(ETH Zurich)
Stephan Welte
(ETH Zurich)
Moritz Fontboté Schmidt
(ETH Zurich)
Ivan Rojkov
(ETH Zurich)
Edgar Brucke
(ETH Zurich)
Hendrik Timme
(ETH Zurich)
Ralf Berner
(ETH Zurich)
Matteo Marinelli
(ETH Zurich)
Ilia Sergachev
(ETH Zurich)
Florentin Reiter
(ETH Zurich)
Daniel Kienzler
(ETH Zurich)
Jonathan Home
(ETH Zurich)
State preparation, readout, single qubit rotations and error correction have been achieved in both of these architectures. I will describe work towards logical entangling gates between two GKP qubits prepared in the motional modes of two atomic ions trapped in close proximity. The modes are coupled via the Coulomb interaction, which approximates a beam splitter. Combined with single mode squeezing operations this beam splitter interaction can realize universal entangling gates between the two GKP states [5]. In theoretical work, we have investigated this gate for experimentally realistic parameters and finite energy GKP states. In parallel, we are developing an apparatus for these experiments, including fabrication of a suitable ion trap and design and implementation of individual optical addressing with tightly focused laser beams.
References
[1] Daniel Gottesman, Alexei Kitaev and John Preskill, Physical Review A 64, 012310 (2001)
[2] Christa Flühmann et al., Nature 566, 368-372 (2019)
[3] Brennan de Neeve et al., Nature Physics 18, 296-300 (2022)
[4] Philippe Campagne-Ibarcq et al., Nature 584, 368-372 (2020)
[5] Ilan Tzitrin et al., Physical Review A 101, 032315 (2020)
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