Quantum capacitance mediated carbon nanotube optomechanics
| Autor: | Blien, Stefan, Steger, Patrick, Hüttner, Niklas, Graaf, Richard, Hüttel, Andreas K. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics Quantum dots Science ddc:530 Carbon nanotubes and fullerenes FOS: Physical sciences Physics::Optics 530 Physik Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Article Optomechanics NEMS Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Electronic devices lcsh:Q Quantum Physics (quant-ph) lcsh:Science PRISTINE SPIN TRANSPORT SYSTEMS |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Cavity optomechanics allows the characterization of a vibration mode, its cooling and quantum manipulation using electromagnetic fields. Regarding nanomechanical as well as electronic properties, single wall carbon nanotubes are a prototypical experimental system. At cryogenic temperatures, as high quality factor vibrational resonators, they display strong interaction between motion and single-electron tunneling. Here, we demonstrate large optomechanical coupling of a suspended carbon nanotube quantum dot and a microwave cavity, amplified by several orders of magnitude via the nonlinearity of Coulomb blockade. From an optomechanically induced transparency (OMIT) experiment, we obtain a single photon coupling of up to $g_0=2\pi\cdot 95\,\textrm{Hz}$. This indicates that normal mode splitting and full optomechanical control of the carbon nanotube vibration in the quantum limit is reachable in the near future. Mechanical manipulation and characterization via the microwave field can be complemented by the manifold physics of quantum-confined single electron devices. Comment: 6 pages, 4 figures; published version (open access) |
| Databáze: | OpenAIRE |
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