Mrs
Angela Di Virgilio
(INFN Sezione di Pisa)
9/9/19, 4:30 PM
Gravitational waves
Oral presentation in parallel session
At present, large area ring laser gyros are the most sensitive inertial sensors to measure angular rotation rate, with sensitivity well below tenths of nrad/s in 1 second and with excellent response at very low frequency.
In principle this kind of apparatus would be useful for gravitation wave antennas, as environmental monitors or to improve the test mass suspension isolation. The question...
Francesco Piergiovanni
(University of Urbino - INFN Firenze)
9/9/19, 4:50 PM
Gravitational waves
Oral presentation in parallel session
The sensitive volume of the gravitational waves advanced detectors are limited by the thermal noise of the test masses. In particular, the high mechanical losses of the multilayer reflecting coating deposited on the mirror surface is accounted for the main contribution of the thermal noise, limiting the sensitivity in the mid-frequency region of the detection band. Several European...
Dr
Mateusz Bawaj
(INFN, Sezione di Perugia, I-06123 Perugia, Italy)
9/9/19, 5:10 PM
Gravitational waves
Oral presentation in parallel session
Current Gravitational-Wave (GW) detectors implement squeezed light injection, as a method for the Quantum Noise (QN) reduction. The sensitivity of present detectors is affected mostly by the high–frequency component of QN as the dominant in the low–frequency region Radiation Pressure Noise (RPN) is covered by technical noises. This situation fosters Frequency-Independent Squeezing (FIS)...
