Cosmology Using Gravitationally Lensed Gravitational Waves

Explore how gravitational-wave signals and their lensing effects contribute to our understanding of cosmology in this 28-minute conference talk from the Workshop on "Lensing and Wave Optics in Strong Gravity" at ESI. Discover the phenomenon of strong gravitational lensing, where a small percentage of gravitational waves detectable by ground-based instruments are bent by galaxies and clusters along their path. Learn about micro-lensing effects caused by compact objects and their impact on observed signals. Examine how both the detection and absence of lensed gravitational waves provide valuable insights into various cosmological aspects, including primordial black holes, dark matter, and the rate of cosmic expansion.