Since the end of the third observation run O3 by the km size interferometers, an intense work of upgrade and preparation for O4 has been performed to achieve a better sensitivitiy, with the expectation of a large increase of merger events, and possibly the observation of new gw sources.
In parallel, the preparation work for third generation interferometers Einsten Telescope and Cosmic Explorer is in full swing, with many R&D activities going on, dedicated laboratories being set up, and long term concepts being elaborated.
The community is growing in size, contributing to the preliminary design and assessing the qualities of the sites candidate to host the instruments. This workshop is the main opportunity worldwide to present the work on detectors leaving, as is tradition, ample space for informal discussions.
Sessions begin on Monday, May 22nd, in the morning and finish on Friday, May 26th, in the afternoon.