After a one-year long observation run and with laboratory activities almost stopped last year, work toward the next observation run by LIGO, Virgo and KAGRA is resuming. At the same time third generation observatories are gaining momentum, with Cosmic Explorer and Einstein Telescope and LISA progressing in their design, and other solutions being considered. Designing these instruments is an immense activity that is attracting more and more experimental groups.
R&D for the advanced detectors is resuming, this workshop offers the opportunity to discuss new ideas, progress and results toward the ultimate sensitivity of the current interferometers and the successful design of the future ones.
