Vb. Braginsky et al., ON THE THERMAL NOISE FROM THE VIOLIN MODES OF THE TEST MASS SUSPENSION IN GRAVITATIONAL-WAVE ANTENNAE, Physics letters. A, 186(1-2), 1994, pp. 18-20
The results of measurements of the quality factors of the violin modes
in the test mass suspension are described. The measured values are be
tween 1 X 10(7) and 4 X 10(7). At this level of dissipation the therma
l noise from the violin modes permits one to reach the standard quantu
m limit of the sensitivity in laser interferometric gravitational wave
antennae.