ArticleScience advances2023
Super-compact universal quantum logic gates with inverse-designed elements.
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Demonstration of a quantum C-NOT gate in a time-multiplexed fully reconfigurable photonic processor.Nature communications · 2026Article
- Reprogrammable metamaterial robot with embodied versatile computation and mechanical intelligence.Nature communications · 2026Article
- Freeform thin-film lithium niobate mode converter for photon-pair generation.Nanophotonics (Berlin, Germany) · 2025Article
- Quantum CZ gates on a single gradient metasurface.Light, science & applications · 2025Article
- Hyperbolic Topological Quantum Sources.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
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Authors and funding
11 authors.
Funding
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Abstract
Integrated quantum photonic circuit is a promising platform for the realization of quantum information processing in the future. To achieve the large-scale quantum photonic circuits, the applied quantum logic gates should be as small as possible for the high-density integration on chips. Here, we report the implementation of super-compact universal quantum logic gates on silicon chips by the method of inverse design. In particular, the fabricated controlled-NOT gate and Hadamard gate are both nearly a vacuum wavelength, being the smallest optical quantum gates reported up to now. We further design the quantum circuit by cascading these fundamental gates to perform arbitrary quantum processing, where the corresponding size is about several orders smaller than that of previous quantum photonic circuits. Our study paves the way for the realization of large-scale quantum photonic chips with integrated sources and can have important applications in the field of quantum information processes.
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