| Autor: |
Florian Vigneau, Juliette Monsel, Jorge Tabanera, Kushagra Aggarwal, Léa Bresque, Federico Fedele, Federico Cerisola, G. A. D. Briggs, Janet Anders, Juan M. R. Parrondo, Alexia Auffèves, Natalia Ares |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 4, Iss 4, p 043168 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.4.043168 |
| Popis: |
The ultrastrong coupling of single-electron tunneling and nanomechanical motion opens exciting opportunities to explore fundamental questions and develop new platforms for quantum technologies. We have measured and modeled this electromechanical coupling in a fully suspended carbon nanotube device and report a ratio of g_{m}/ω_{m}=2.72±0.14, where g_{m}/2π=0.80±0.04GHz is the coupling strength and ω_{m}/2π=294.5MHz is the mechanical resonance frequency. This is well within the ultrastrong coupling regime and the highest among all other electromechanical platforms. We show that, although this regime was present in similar fully suspended carbon nanotube devices, it went unnoticed. Even higher ratios could be achieved with improvement on device design. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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