2006/12/31 by Kazuhiro Yamamoto, Masaki Ando, K. Kawabe +2 · 1 citation
Engineering · Physics and Astronomy · #Advanced Electrical Measurement Techniques #Advanced Frequency and Time Standards #Geophysics and Sensor Technology #gr-qc #physics.ins-det
paper · pdf · doi:10.1103/physrevd.75.082002
published as Phys.Rev.D75:082002,2007 · 10 pages, 4 figures
openalex publication_date 2007/04/17 · arxiv created 2007/04/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We modified the modal expansion, which is the traditional method used to calculate thermal noise. This advanced modal expansion provides physical insight about the discrepancy between the actual thermal noise caused by inhomogeneously distributed loss and the traditional modal expansion. This discrepancy comes from correlations between the thermal fluctuations of the resonant modes. The thermal-noise spectra estimated by the advanced modal expansion are consistent with the results of measurements of thermal fluctuations caused by inhomogeneous losses.