aiqbench analysis
This paper is a hardware advance for neutral-atom quantum platforms: it uses a two-channel multimode fiber coupler to form optical tweezers that trap individual atoms, with tweezer placement that tolerates input misalignment. The results are demonstrations of a compact, lower-cost alternative to bulky objective lenses, not a scaled system. Readers tracking quantum computing hardware should note the reduced size and alignment sensitivity, but the work does not yet show array sizes or gate performance.
Focusing through coupled multimode fibers for miniaturized single-atom tweezer arrays
arXiv:2610.41917v1 Announce Type: cross Abstract: Real-world deployment of quantum technologies requires systems in low SWaP-C packages. Quantum platforms based on ultracold atoms typically trap and control atoms with optical tweezers using light focused through bulky objective lenses, which are costly and sensitive to misalignment. Multimode fibers (MMFs) offer a compact route to focusing light, but their use in forming optical tweezers for cold atoms has been limited to a single fiber. Here we use a 2x1 MMF fused coupler to obtain two independent control paths sharing a common distal facet. We form near-diffraction-limited tweezers through each channel, suppress interference by applying a small frequency offset between the channels, and demonstrate that the tweezer separation is insensitive to misalignment of the input coupling. This work provides a route to reconfigurable single-atom arrays in low SWaP-C environments.
Abstract:Real-world deployment of quantum technologies requires systems in low SWaP-C packages. Quantum platforms based on ultracold atoms typically trap and control atoms with optical tweezers using light focused through bulky objective lenses, which are costly and sensitive to misalignment. Multimode fibers (MMFs) offer a compact route to focusing light, but their use in forming optical tweezers for cold atoms has been limited to a single fiber. Here we use a 2x1 MMF fused coupler to obtain two independent control paths sharing a common distal facet. We form near-diffraction-limited tweezers through each channel, suppress interference by applying a small frequency offset between the channels, and demonstrate that the tweezer separation is insensitive to misalignment of the input coupling. This work provides a route to reconfigurable single-atom arrays in low SWaP-C environments.
Optics (physics.optics); Atomic Physics (physics.atom-ph); Quantum Physics (quant-ph)
arXiv:2610.41917 [physics.optics]
(or arXiv:2610.41917v1 [physics.optics] for this version)
https://doi.org/10.48550/arXiv.2610.41917 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
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Full text under the publisher's open licence · 229 words