Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips

• DOI: 10.48550/arxiv.2410.06461
• Publication Date: 2024-10-08
• Authors: Wange Song; Xuanyu Liu; Jiacheng Sun; Oubo You; Shengjie Wu; Chen Chen; Shining Zhu; Tao Li; Shuang Zhang
• Keywords: Condensed Matter - Mesoscale and Nanoscale Physics; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); FOS: Physical sciences; Physics - Optics; Optics (physics.optics)

The non-Abelian braiding describes the exchange behavior of anyons, which can be leveraged to encode qubits for quantum computing. Recently, this concept has been realized in classical photonic and acoustic systems. However, these implementations are constrained by adiabatic conditions, necessitating long operation distances impeding practical applications. Here, we conceive demonstrate a shortcut (STA) telecommunication light three-dimensional silicon chips. Our device comprises tri-layer waveguides stacked embedded SU-8 polymer, employing an STA strategy expedite operations give rise compact devices that function as X, Y, Z gates. We further experimentally observed behaviors based on STA-braiding scheme. Remarkably, achievement represents most apparatus ever reported, with size reduction nearly three orders magnitude compared previous works. This work presents feasible approach accelerating evolutions, paving way compact, CMOS-compatible devices.