| Autor: |
Zollitsch, Christoph W., Mueller, Kai, Franke, David P., Goennenwein, Sebastian T. B., Brandt, Martin S., Gross, Rudolf, Huebl, Hans |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Appl. Phys. Lett. 107, 142105 (2015) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.4932658 |
| Popis: |
We investigate the coupling of an ensemble of phosphorus donors in an isotopically purified $^{28}$Si host lattice interacting with a superconducting coplanar waveguide resonator. The microwave transmission spectrum of the resonator shows a normal mode splitting characteristic for high cooperativity. The evaluated collective coupling strength $g_{\mathrm{eff}}$ is of the same order as the loss rate of the spin system $\gamma$, indicating the onset of strong coupling. We develop a statistical model to describe the influence of temperature on the coupling strength from $50\,\mathrm{mK}$ to $3.5\,\mathrm{K}$ and find a scaling of the coupling strength with the square root of the number of thermally polarized spins. |
| Databáze: |
arXiv |
| Externí odkaz: |
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