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Poster Session

Poster Session II

4:00 pm – 6:00 pm, Wednesday June 18 Session H00 Oregon Convention Center, Exhibit Hall E
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Cryogenic Dual Species Rydberg Arrays

Poster 126
Presenter: Paul Martin Ireland (University of Strathclyde)
Authors: Jonathan Pritchard (University of Strathclyde), Daniel Walker (University of Strathclyde), Kieran Craig (University of Strathclyde), Ian Moodie (University of Strathclyde)

We present progress towards realizing dual species tweezer arrays of rubidium and caesium atoms in a cryogenic apparatus for enhanced trap lifetimes. The separation of the fluorescence wavelengths of Rb and Cs natively allows for independent readout of each species without crosstalk, making this a promising platform for the implementation of quantum error correction codes.


We have identified optimal interspecies Förster resonances between Rydberg d-state orbitals which give rise to enhanced interactions between species while intraspecies couplings are strongly suppressed [1]. This reduces leakage error for multi-qubit entanglement operations mediated by these Rydberg states by comparison with similar schemes for s-states.


We will use our cryogenic experimental platform to investigate these interactions, realise interspecies quantum logic gates, and ultimately aim to implementquantum error correction.

[1] P. M. Ireland, D. M. Walker, and J. D. Pritchard, Phys. Rev. Research 6, 013293 (2024)

Funding acknowledgement

This work was funded by the Royal Academy of Engineering Senior Research Fellowship and the Engineering and Physical Sciences Research Council (Grant No. EP/X025055/1).

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