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| PhD Fellowship in Modeling gravitational waves for the future generations | Closing date: 2023-01-25
Contact: La Caixa Fellowships |
| This project seeks to upgrade the accuracy and generality of the current state of the art analytic models for waveform generation. To this end, the student will perform Numerical Relativity simulations of black hole binaries, focusing on precessing, eccentric binaries, which are currently poorly described by analytic models. Moreover, as a member of the Virgo and Einstein Telescope collaborations, the student will liaise with data analysts across the board, in order to understand the current capabilities of the models and future requirements. | | ▸ more | Research Project:
Our ability to detect gravitational waves (GW) is reshaping the way we perceive the Universe. This was made possible by a planet-scale multidisciplinary effort, combining experimental devices of unprecedented precision, and state of the art modeling and data analysis techniques.
On the modeling front, a crucial aspect is the fast generation of accurate enough templates for the expected signals. In turn, this relies on the calibration provided by Numerical Relativity, i.e. the fully fledged simulation of Einstein's equations.
While the current modeling techniques are to some extent sufficient for the current detectors, the third generation of detectors (LISA, Einstein Telescope) increased sensitivity will pose much stronger accuracy requirements on the approximate models used for data analysis.
The ICCUB is a full member of the Virgo and soon to join the Einstein Telescope collaboration, so you will work on the forefront of GW research. You will join the enthusiastic Virgo and Einstein Telescope research groups of the ICCUB who organize weekly science meetings, journal clubs and seminars. You will also benefit from scientific interactions with various ICCUB staff in the areas of Cosmology (Licia Verde, Jordi Miralda), Black Holes (Cristiano Germani, Jaume Garriga) and High Energy Physics (Roberto Emparan, David Mateos, Tomeu Fiol), star formation (Paolo Padoan), and galaxy formation (Chervin Laporte, Teresa Antoja). Finally, you will also be involved in international collaborations with groups in Italy, Germany and the UK.
Job position description
This project seeks to upgrade the accuracy and generality of the current state of the art analytic models for waveform generation. To this end, the student will perform Numerical Relativity simulations of black hole binaries, focusing on precessing, eccentric binaries, which are currently poorly described by analytic models. Moreover, as a member of the Virgo and Einstein Telescope collaborations, the student will liaise with data analysts across the board, in order to understand the current capabilities of the models and future requirements.
The desired outcome of the project is the improvement of one or more approximate models of black hole binary coalescence in a way compatible with the new generation detectors expected sensitivity.
Essential skills: basic theoretical aspects of General Relativity, such as black hole geometries, physics of gravitational waves; basic programming: Python
Desirable skills: advanced theoretical aspects of General Relativity, such as ADM decomposition, conserved quantities in gravity; Machine Learning; advanced programming: Python, C
More information:
Group leader
Dr. Tomás Andrade ?tandrade @ icc.ub.edu
Research product / Research group
Website of Tomas Andrade
https://icc.ub.edu/people/486
website of the Virgo interferometer
https://www.virgo-gw.eu
Website of the Einstein Telescope project
https://www.et-gw.eu
ICCUB participation in Virgo
http://icc.ub.edu/research/key_projects/virgo
https://icc.ub.edu/node/21452
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