On Monday (10/24-22) at 12:00 p.m. c.t., the next meeting of our Physics Colloquium will take place.
Speaker is Prof. Dr. Michèle Heurs (AEI Hannover) on the topic: "Gravitational Waves in a New Light."
Since the first direct detection of gravitational waves in 2015, we have gained an entirely new observation window to the universe - now, we not only have electromagnetic telescopes and neutrino detectors to view astrophysical events, but we can also listen to the cosmos using interferometric gravitational wave detectors. The sensitivity of these interferometers is so incredible that quantum effects of the employed light have already become limiting. Ultra-precisely stabilised lasers do not suffice; non-classical (fixed-quadrature squeezed) light is already routinely employed in the current (second) generation gravitational wave detectors (such as aLIGO and AdVirgo).To achieve ever-higher detection rates for meaningful gravitational wave astronomy, ever-greater detection sensitivity is required. In this talk, I will introduce the principle of interferometric gravitational wave detection and highlight some of the advanced technologies employed in Advanced LIGO. I will conclude my talk by showing some recent results and further possibilities, as well as options for quantum noise reduction in laser interferometry and the broader field of quantum optics.
Abstract lecture Prof. Dr. MIchèle Heurs
The introduction will be given by Prof. Dr. Anna Franckowiak.
The faculty cordially invites all interested parties. The event will take place in lecture hall HNC 10 and hybrid via Zoom. Before the colloquium we offer coffee and cookies.
This link will take you to the Zoom event (Meeting-ID: 632 5520 9938, password: 526977). All dates of the Physics Colloquium can be found here.