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An atomic-scale multi-qubit platform
- Title
- An atomic-scale multi-qubit platform
- Authors
- Wang; Yu; Chen; Yi; Bui; Hong T.; Wolf; Christoph; Haze; Masahiro; Mier; Cristina; Kim; Jinkyung; Choi; Deung-Jang; Lutz; Christopher P.; Bae; Yujeong; Phark; Soo-Hyon; Heinrich; Andreas J.
- Ewha Authors
- 박수현; Andreas Heinrich; 배유정; Christoph Wolf
- SCOPUS Author ID
- 박수현; Andreas Heinrich; 배유정; Christoph Wolf
- Issue Date
- 2023
- Journal Title
- Science
- ISSN
- 0036-8075
- Citation
- Science vol. 382, no. 6666, pp. 87 - 92
- Publisher
- American Association for the Advancement of Science
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Individual electron spins in solids are promising candidates for quantum science and technology, where bottom-up assembly of a quantum device with atomically precise couplings has long been envisioned. Here, we realized atom-by-atom construction, coherent operations, and readout of coupled electron-spin qubits using a scanning tunneling microscope. To enable the coherent control of “remote” qubits that are outside of the tunnel junction, we complemented each electron spin with a local magnetic field gradient from a nearby single-atom magnet. Readout was achieved by using a sensor qubit in the tunnel junction and implementing pulsed double electron spin resonance. Fast single-, two-, and three-qubit operations were thereby demonstrated in an all-electrical fashion. Our angstrom-scale qubit platform may enable quantum functionalities using electron spin arrays built atom by atom on a surface. Copyright © 2023 The Authors, some rights reserved.
- DOI
- 10.1126/science.ade5050
- Appears in Collections:
- 연구기관 > 기초과학연구소 > Journal papers
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