Bulletin of the American Physical Society
APS April Meeting 2023
Volume 68, Number 6
Minneapolis, Minnesota (Apr 15-18)
Virtual (Apr 24-26); Time Zone: Central Time
Session B04: A Beginner's Guide to Gravitational PhysicsInvited Undergrad Friendly
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Sponsoring Units: DGRAV Chair: Gabriela Gonzalez, Louisiana State University Room: MG Salon C - 3rd Floor |
Saturday, April 15, 2023 10:45AM - 11:21AM |
B04.00001: A Beginner's Guide to Numerical Relativity Invited Speaker: David Garfinkle This turorial session will start with the method of finite differences and its use in solving ordinary differential equations and partial differential equations. I will then cover issues specific to simulations of general relativity: coordinate invariance and spacetime singularities. I will explain how these issues led to longstanding problems wih ill posedness and growth of constraint violating modes, and how those difficulties were overcome to yield successful binary black hole simulations. I will then briefly mention how matter is incorporated into numerical relativity simulations. |
Saturday, April 15, 2023 11:21AM - 11:57AM |
B04.00002: A Beginner's Guide to Gravitational-Wave Astronomy Invited Speaker: Bangalore S Sathyaprakash A Beginner's Guide to Gravitational-Wave Astronomy will give a broad introduction to contributed talks at the meeting. It will provide an overview of the talks on gravitational-wave astronomy and the background necessary to understand and appreciate the results. I will also make an effort to describe how we expect the field to progress as detectors become more sensitive and new terrestrial detectors are built. |
Saturday, April 15, 2023 11:57AM - 12:33PM |
B04.00003: A Beginner's Guide to Quantum Gravity Invited Speaker: Steven J Carlip More than a century has passed since Einstein first pointed out the need to quantize general relativity. Since then, the search for quantum gravity has taught us a great deal about quantum field theory, general relativity, classical mechanics, and mathematics. It has not, however, yet led to a complete, convincing quantum theory of gravity. In this talk, I will briefly describe the (likely) necessity of quantum gravity and some of the conceptual issues that make this such a hard problem. I will then summarize a few of the main research programs and potential "windows" into quantum gravity, and sketch out a bit of recent progress in the search. |
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