Formation of Ultracold Molecules by Merging Optical Tweezers

K., Ruttley, Daniel; Guttridge, Alexander; Spence, Stefan; Bird, Robert C.; Sueur, C.; Hutson, Jeremy M.; Cornish, Simon L.

doi:10.1103/physrevlett.130.223401

Cited by 21 publications

(1 citation statement)

References 59 publications

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“…The MERGE approach realizes the tunneling gate by temporarily bringing the two tweezers

and

so close together that atoms can tunnel between the corresponding lowest vibrational states ( Fig. 2 A ), as it has been demonstrated in recent experiments ( 52 , 56 – 58 , 72 ). Another approach involves fully merging (and later separating) the tweezer pair through custom-designed merging and splitting protocols.…”

Section: Hardwired Fermi Statisticsmentioning

confidence: 83%

Fermionic quantum processing with programmable neutral atom arrays

González-Cuadra,

Bluvstein,

Kalinowski

et al. 2023

Proc. Natl. Acad. Sci. U.S.A.

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Simulating the properties of many-body fermionic systems is an outstanding computational challenge relevant to material science, quantum chemistry, and particle physics.-5.4pc]Please note that the spelling of the following author names in the manuscript differs from the spelling provided in the article metadata: D. González-Cuadra, D. Bluvstein, M. Kalinowski, R. Kaubruegger, N. Maskara, P. Naldesi, T. V. Zache, A. M. Kaufman, M. D. Lukin, H. Pichler, B. Vermersch, Jun Ye, and P. Zoller. The spelling provided in the manuscript has been retained; please confirm. Although qubit-based quantum computers can potentially tackle this problem more efficiently than classical devices, encoding nonlocal fermionic statistics introduces an overhead in the required resources, limiting their applicability on near-term architectures. In this work, we present a fermionic quantum processor, where fermionic models are locally encoded in a fermionic register and simulated in a hardware-efficient manner using fermionic gates. We consider in particular fermionic atoms in programmable tweezer arrays and develop different protocols to implement nonlocal gates, guaranteeing Fermi statistics at the hardware level. We use this gate set, together with Rydberg-mediated interaction gates, to find efficient circuit decompositions for digital and variational quantum simulation algorithms, illustrated here for molecular energy estimation. Finally, we consider a combined fermion-qubit architecture, where both the motional and internal degrees of freedom of the atoms are harnessed to efficiently implement quantum phase estimation as well as to simulate lattice gauge theory dynamics.

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“…The MERGE approach realizes the tunneling gate by temporarily bringing the two tweezers

and

Section: Hardwired Fermi Statisticsmentioning

confidence: 83%