Chip-Integrated Vortex Manipulation

• DOI: 10.1021/acs.nanolett.3c00324
• Publication Date: 2023-03-14T18:49:11Z
• Authors: Itai Keren; Alon Gutfreund; Avia Noah; Nofar Fridman; Angelo Di Bernardo; Hadar Steinberg; Yonathan Anahory
• Keywords: Superconductivity (cond-mat.supr-con); Braiding; Scanning SQUID-on-Tip Microscopy; Topological Quantum Computation; Vortex Manipulation; Condensed Matter - Superconductivity; Topological Quantum Computation; Scanning SQUID-on-Tip Microscopy; FOS: Physical sciences; Vortex Manipulation; 02 engineering and technology; info:eu-repo/classification/ddc/530; 0210 nano-technology; Braiding

The positions of Abrikosov vortices have long been considered as means to encode classical information. Although it is possible move individual using local probes, the challenge scalable on-chip vortex-control remains outstanding, especially when considering demands controlling multiple vortices. Realization vortex logic requires shuttle reliably between engineered pinning potentials, while concomitantly keeping all other fixed. We demonstrate such capabilities Nb loops patterned below a NbSe2 layer. SQUID-on-Tip (SOT) microscopy reveals that localize in designated sites precision better than 100 nm; they realize "push" and "pull" operations far 3 μm. Successive application shuttles adjacent loops. Our results may be used integrate future quantum circuitry. Strikingly, we winding operation, paving way for topological computing simulations.