Python at the speed of light - Simulating Relativity using EinsteinPy

An introduction to the very new python package "EinsteinPy", and how it helps to solve the greatest and most complex problem of all times - General Relativity. EinsteinPy is an Astropy Affiliated Package and a member organisation in ESA Summer of Code in Space 2019.

View talk here: https://cloudproject.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=8f42ed8d-d329-4f10-9ed4-aa9a0107f880

Lightning talk delivered at Python in Astronomy 2019 @ Space Telescope Science Institute, Baltimore, United States of America

Transcript

1. Python at the speed of light Simulating relativity using EinsteinPy Lightning Talk Shreyas Bapat @astroshreyas PyAstro 2019 @ STScI, Baltimore (USA) 29/07/2019
2. Who is this guy? • Undergraduate (Electrical Engineering) from IIT Mandi, India • Amateur Astronomer • Software Intern @ Siemens • Passionate about open code • Former Coordinator of Space Technology and Astronomy Cell, IIT Mandi
3. What’s Wrong? According to derivation from Maxwell’s equation, speed of light is given by : • The equation does not depend upon the position or velocity of the observer. • This contradicts with Galileo’s and Newton’s perception of velocity(classical mechanics)
4. Incorporate Gravity into SR (GR) • Special Relativity - 1905 • General Relativity - 1916 • First exact solution to GR(Schwarzschild Solution) - 1916
5. Straight lines in curved space! • Introduction to geodesics • In differential geometry, a geodesic is a curve representing in some sense the shortest path between two points in a surface, or more generally in a Riemannian manifold. It is a generalization of the notion of a "straight line" to a more general setting.
6. Einstein’s Field Equation (EFE) Einstein's equation relates the matter content (right side of the equation) to the geometry (the left side) of the system. It can be summed up with "mass creates geometry, and geometry acts like mass".
7. Schwarzschild Solution • Kerr Solution • Kerr-Newman Solution • No-hair theorem
8. What is
9. Astropy Affiliated Package (Recently)
10. Astropy Affiliated Package The only project which targets GR
11. The EinsteinPy Core Team Shreyas Bapat Lead Developer Coordinates, Plotting and Packaging Ritwik Saha Lead Developer Symbolic Bhavya Bhatt Theoretical Physicist Metrics and ODE Priyanshu Khandelwal Lead Developer Conda Packaging, Adaptive Mesh Refinement
12. Complete Workflow on GitHub
13. OSI Approved Licence
14. General Details ~ 28 Contributors so far! ~ 3200 Downloads (PyPi + conda) ~ 112 Stars (We want more :p) Packaged in Debian Astro Pure Blend
15. Testing and Continuous Integration
16. The EinsteinPy Package Key functionality and common tools needed for doing general relativity, gravitational physics, relativistically corrected orbit dynamics with Python
17. The EinsteinPy Package Key functionality and common tools needed for doing general relativity, gravitational physics, relativistically corrected orbit dynamics with Python Key Features : Geometry analysis and trajectory calculation in vacuum solutions of Einstein’s field equations. - Schwarzschild Space-Time - Kerr Space-Time - Kerr-Newman Space-Time
18. The EinsteinPy Package Key functionality and common tools needed for doing general relativity, gravitational physics, relativistically corrected orbit dynamics with Python Key Features : Coordinates support (~einsteinpy.coordinates) - Cartesian Coordinates - Spherical Coordinates - Boyer Lindquist Coordinates
19. The EinsteinPy Package Key functionality and common tools needed for doing general relativity, gravitational physics, relativistically corrected orbit dynamics with Python Key Features : Symbolic Calculations - Christoffel Symbols - Riemann Curvature Tensor - Simplification of symbolic expressions - Weyl Tensor, Einstein Tensor SOCIS Student: Sofía Ortín Vela, Universidad de Zaragoza (Spain)
20. The EinsteinPy Package Key functionality and common tools needed for doing general relativity, gravitational physics, relativistically corrected orbit dynamics with Python Key Features : Visualisation of Geodesics - 2D, 3D Visualisation using Matplotlib - 2D, 3D Interactive Visualisation using Plotly - Environment aware plotting and backend selection
21. Let’s shoot a particle towards a Kerr Black hole
22. Interesting : The Logo! They are geodesics (Plotted using matplotlib and EinsteinPy :P)
23. Get in touch with EPy Community! Mailing List : einsteinpy-dev@groups.io (https://groups.io/g/einsteinpy-dev) Chatroom : https://matrix.to/#/#einsteinpy:matrix.org Developer Support : developers@einsteinpy.org GitHub : https://github.com/einsteinpy/einsteinpy Blog : https://einsteinpy.org Documentation: https://docs.einsteinpy.org
24. Get in touch :D GitHub : shreyasbapat Twitter : @astroshreyas You can follow me to keep updated :) Or mail me : hello@shreyasb.com , shreyas@einsteinpy.org