| Literature DB >> 28339239 |
J Goetz1,2, S Pogorzalek1,2, F Deppe1,2,3, K G Fedorov1,2, P Eder1,2,3, M Fischer1,2,3, F Wulschner1,2, E Xie1,2,3, A Marx1, R Gross1,2,3.
Abstract
In experiments with superconducting quantum circuits, characterizing the photon statistics of propagating microwave fields is a fundamental task. We quantify the n^{2}+n photon number variance of thermal microwave photons emitted from a blackbody radiator for mean photon numbers, 0.05≲n≲1.5. We probe the fields using either correlation measurements or a transmon qubit coupled to a microwave resonator. Our experiments provide a precise quantitative characterization of weak microwave states and information on the noise emitted by a Josephson parametric amplifier.Year: 2017 PMID： 28339239 DOI： 10.1103/PhysRevLett.118.103602
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161