| Autor: |
Simoen, M., Chang, C. W. S., Krantz, P., Bylander, Jonas, Wustmann, W., Shumeiko, V., Delsing, P., Wilson, C. M. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2015, Vol. 118 Issue 15, p154501-1-154501-9, 9p, 3 Diagrams, 1 Chart, 5 Graphs |
| Abstrakt: |
We characterize a Josephson parametric amplifier based on a flux-tunable quarter-wavelength resonator. The fundamental resonance frequency is ~1 GHz, but we use higher modes of the resonator for our measurements. An on-chip tuning line allows for magnetic flux pumping of the amplifier. We investigate and compare degenerate parametric amplification, involving a single mode, and nondegenerate parametric amplification, using a pair of modes. We show that we reach quantum-limited noise performance in both cases. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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