Thermo-refractive noise in gravitational wave antennae

2000/07/01 by V. B. Braginsky, V.B. Braginsky, M. L. Gorodetsky +3 · 8 citations
Engineering · Physics and Astronomy · #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #Thermoelastic and Magnetoelastic Phenomena #cond-mat.mtrl-sci

paper · pdf · doi:10.1016/s0375-9601(00)00389-3

published as Phys.Lett. A271 (2000) 303-307 · 11 pages, 1 figure, the paper is revised as compared to one accepted in Phys.Letts.A (new numerical estimates)

openalex publication_date 2000/07/01 · arxiv created 2000/08/07 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Thermodynamical fluctuations of temperature in mirrors of gravitational wave antennae may be transformed into additional noise not only through thermal expansion coefficient but also through temperature dependence of refraction index. The intensity of this noise is comparable with other known noises and must be taken into account in future steps of the antennas.

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