The Advanced Virgo+ status

Et al.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

Abstract

The gravitational wave detector Advanced Virgo+ is currently in the commissioning phase in view of the fourth Observing Run (O4). The major upgrades with respect to the Advanced Virgo configuration are the implementation of an additional recycling cavity, the Signal Recycling cavity (SRC), at the output of the interferometer to broaden the sensitivity band and the Frequency Dependent Squeezing (FDS) to reduce quantum noise at all frequencies. The main difference of the Advanced Virgo + detector with respect to the LIGO detectors is the presence of marginally stable recycling cavities, with respect to the stable recycling cavities present in the LIGO detectors, which increases the difficulties in controlling the interferometer in presence of defects (both thermal and cold defects). This work will focus on the interferometer commissioning, highlighting the control challenges to maintain the detector in the working point which maximizes the sensitivity and the duty cycle for scientific data taking.
Original languageEnglish
Title of host publication12th Cosmic Ray International Seminar
Number of pages12
Volume2429
Edition1
DOIs
Publication statusPublished - 1 Jan 2023
Event12th Cosmic Ray International Seminar - Napoli, Italy
Duration: 12 Sept 202216 Sept 2022
https://agenda.infn.it/event/29965/

Publication series

SeriesJournal of Physics: Conference Series
ISSN1742-6588

Conference

Conference12th Cosmic Ray International Seminar
Abbreviated titleCRIS 2022
Country/TerritoryItaly
CityNapoli
Period12/09/2216/09/22
Internet address

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