Perturbation-resilient integer arithmetic using optical skyrmions

Journal article

The decline of Moore’s law coupled with the rise of artificial intelligence has recently motivated research into photonic computing as a high-bandwidth, low-power strategy to accelerate digital electronics. However, many modern-day photonic computing strategies are analogue, making them susceptible to noise and intrinsically difficult to scale. Optical skyrmions offer a route to overcome these limitations through digitization in the form of a discrete topological number that can be assigned to the analogue optical field. Apart from an intrinsic robustness against perturbations, optical skyrmions represent a new medium that has yet to be fully exploited for photonic computing, namely, spatially varying polarization. Here we propose and experimentally demonstrate a method for performing perturbation-resilient integer arithmetic with optical skyrmions and passive optical components, achieving discrete mathematical operations directly using optical skyrmions without external energy input.

Authors: Wang, AA; Ma, Y; Zhang, Y; Zhao, Z; Cai, Y

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Nature Research
• Journal: Nature Photonics
• Volume: 19
• Issue: 12
• Pages: 1367-1375
• Publication date: 2025-10-27
• Acceptance date: 2025-09-18
• DOI: 10.1038/s41566-025-01779-x
• EISSN: 1749-4893
• ISSN: 1749-4885
• Language: English