Theoretical Physics Seminar
Title : Let’s slip into inspiral
Date : 05-04-2024
Time : 14:30:00
Speaker : Dr. Shilpa Kastha
Area : Theoretical Physics
Venue : Online ---> https://imeet.vconsol.com/join/1736146599?be_auth=NzM2NDU3
Abstract
I will start with a brief introduction to gravitational waves and update about the current detections and my involvement in those. My main focus will be a state-of-the-art discussion on contemporary tests of general relativity with gravitational wave observations and my contributions to developing a few of those.
Title : Dark Matter: the Enigma of our Cosmos
Date : 18-04-2024
Time : 14:30:00
Speaker : Dr. Anirban Das
Area : Theoretical Physics
Venue : Room no: 469 (Main Campus)
Abstract
We have known about the existence of a dark sector in our Universe for almost 100 years that comprises about 85% of all matter. However, we are still in the dark about its fundamental nature. In this talk, I will describe various evidences of dark matter that we have, and outline a few theoretical ideas to explain its cosmic abundance. Finally, I will give an overview of various experimental endeavors to identify it, such as direct, indirect detection experiments etc.
Title : New Ways to Detect Light Dark Matter
Date : 19-04-2024
Time : 14:30:00
Speaker : Dr. Anirban Das
Area : Theoretical Physics
Venue : Room no: 469 (Main Campus)
Abstract
In the last few years, direct detection of light sub-GeV dark matter has emerged as a frontier research area. Because of its low energy scales, many condensed matter systems have been proposed as possible target materials. In this talk, I'll briefly review the mechanisms behind a few of them, and introduce two novel ideas. First, to use superconducting quantum devices to measure the power deposition from dark matter scattering. I'll show that the existing data already put competitive limits on the dark matter-nucleon interaction. I'll also describe how bilayer graphene with voltage-tunable band gap can be used to probe sub-MeV dark matter-electron scattering with promising future prospects.