Beyond the Second Generation of Laser-Interferometric Gravitational Wave Observatories

TL;DR

This paper reviews upgrades to second-generation gravitational wave detectors and discusses the design of the third-generation Einstein Telescope, focusing on technological improvements and noise reduction strategies.

Contribution

It provides an overview of potential technological advancements for second-generation detectors and introduces the baseline design of the Einstein Telescope, a third-generation observatory.

Findings

Identification of key noise sources for upgrades

Outline of technological requirements for improved sensitivity

Brief discussion of Einstein Telescope design

Abstract

This article gives an overview of potential upgrades of second generation gravitational wave detectors and the required key technologies to improve the limiting noise sources. In addition the baseline design of the Einstein Telescope, a European third generation gravitational wave observatory, is briefly discussed.