Physics – Condensed Matter – Superconductivity
Scientific paper
2012-02-03
Appl. Phys. Lett. 100, 162601 (2012)
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1063/1.4704151
We have measured the number of quasiparticles and their lifetime in aluminium superconducting microwave resonators. The number of excess quasiparticles below 160 mK decreases from 72 to 17 $\mu$m$^{-3}$ with a 6 dB decrease of the microwave power. The quasiparticle lifetime increases accordingly from 1.4 to 3.5 ms. These properties of the superconductor were measured through the spectrum of correlated fluctuations in the quasiparticle system and condensate of the superconductor, which show up in the resonator amplitude and phase respectively. Because uncorrelated noise sources vanish, fluctuations in the superconductor can be studied with a sensitivity close to the vacuum noise.
Baselmans J. J. A.
de Visser P. J.
Diener Peter
Endo Akira
Klapwijk Teum M.
No associations
LandOfFree
Microwave-induced excess quasiparticles in superconducting resonators measured through correlated conductivity fluctuations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Microwave-induced excess quasiparticles in superconducting resonators measured through correlated conductivity fluctuations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave-induced excess quasiparticles in superconducting resonators measured through correlated conductivity fluctuations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-329386