Mohammed Khalil

Mohammed Khalil portrait
Perimeter Institute for Theoretical Physics
Postdoctoral Researcher
Areas of research:
Strong Gravity
My research focuses on gravitational-wave (GW) physics, and can be divided into the following complementary directions: 1) describing the dynamics of compact binary systems and their GW emissions, primarily through the post-Newtonian approximation (small-velocity and weak-field expansion); 2) improving waveform models and extending them for spinning binaries and eccentric orbits, which is important in searching for GW signals and inferring their parameters; and 3) identifying some signatures of modified gravity theories on GWs, such as scalarization, which is a phase transition in the strong-field regime that occurs in several scalar extensions of general relativity.
  • Doctoral Student, Max Planck Institute for Gravitational Physics, 2018-2022
  • Graduate Student, University of Maryland, College Park, 2016-2022
  • Teaching Assistant, University of Maryland, College Park, 2016-2017
  • Otto Hahn Medal, The Max Planck Society, 2024
  • Charles W. Misner Award, University of Maryland, 2021
  • Ralph Myers & Friends of Physics Award, University of Maryland, Department of Physics, 2017
  • Bautista, Y. F., Khalil, M., Sergola, M., Kavanagh, C., & Vines, J. (2024). Post-Newtonian observables for aligned-spin binaries to sixth order in spin from gravitational self-force and Compton amplitudes. Physical Review D, 110(12), 124005. doi:10.1103/physrevd.110.124005
  • Bautista, Y. F., Khalil, M., Sergola, M., Kavanagh, C., & Vines, J. (2024). Post-Newtonian observables for aligned-spin binaries to sixth order in spin from gravitational self-force and Compton amplitudes. doi:10.48550/arxiv.2408.01871
  • Faggioli, G., Meent, M. V. D., Buonanno, A., Gamboa, A., Khalil, M., & Khanna, G. (2024). Testing eccentric corrections to the radiation-reaction force in the test-mass limit of effective-one-body models. arxiv:2405.19006v1
  • Ramos-Buades, A., Buonanno, A., Estellés, H., Khalil, M., Mihaylov, D. P., Ossokine, S., . . . Shiferaw, M. (2023). Next generation of accurate and efficient multipolar precessing-spin effective-one-body waveforms for binary black holes. Physical Review D, 108(12), 124037. doi:10.1103/physrevd.108.124037
  • Khalil, M., Buonanno, A., Estellés, H., Mihaylov, D. P., Ossokine, S., Pompili, L., & Ramos-Buades, A. (2023). Theoretical groundwork supporting the precessing-spin two-body dynamics of the effective-one-body waveform models SEOBNRv5. Physical Review D, 108(12), 124036. doi:10.1103/physrevd.108.124036
  • Pompili, L., Buonanno, A., Estellés, H., Khalil, M., van de Meent, M., Mihaylov, D. P., . . . Sanchez, J. (2023). Laying the foundation of the effective-one-body waveform models SEOBNRv5: Improved accuracy and efficiency for spinning nonprecessing binary black holes. Physical Review D, 108(12), 124035. doi:10.1103/physrevd.108.124035
  • Henry, Q., & Khalil, M. (2023). Spin effects in gravitational waveforms and fluxes for binaries on eccentric orbits to the third post-Newtonian order. Physical Review D, 108(10), 104016. doi:10.1103/physrevd.108.104016
  • LISA Consortium Waveform Working Group., Afshordi, N., Akçay, S., Seoane, P. A., Antonelli, A., Aurrekoetxea, J. C., . . . Vañó-Viñuales, A. (2023). Waveform Modelling for the Laser Interferometer Space Antenna. doi:10.48550/arxiv.2311.01300
  • Henry, Q., & Khalil, M. (2023). Spin effects in gravitational waveforms and fluxes for binaries on eccentric orbits to the third post-Newtonian order. doi:10.48550/arxiv.2308.13606
  • Khalil, M., Buonanno, A., Estellés, H., Mihaylov, D. P., Ossokine, S., Pompili, L., & Ramos-Buades, A. (2023). Theoretical groundwork supporting the precessing-spin two-body dynamics of the effective-one-body waveform models SEOBNRv5. doi:10.48550/arxiv.2303.18143
  • Ramos-Buades, A., Buonanno, A., Estellés, H., Khalil, M., Mihaylov, D. P., Ossokine, S., . . . Shiferaw, M. (2023). SEOBNRv5PHM: Next generation of accurate and efficient multipolar precessing-spin effective-one-body waveforms for binary black holes. doi:10.48550/arxiv.2303.18046
  • Pompili, L., Buonanno, A., Estellés, H., Khalil, M., van de Meent, M., Mihaylov, D. P., . . . Sanchez, J. (2023). Laying the foundation of the effective-one-body waveform models SEOBNRv5: improved accuracy and efficiency for spinning non-precessing binary black holes. doi:10.48550/arxiv.2303.18039
  • Khalil, M. (2022). Analytical modeling of compact binaries in general relativity and modified gravity theories. (PhD Thesis). https://doi.org/10.13016/nj5r-bfj5
  • Henry, Q., Marsat, S., & Khalil, M. (2022). Spin contributions to the gravitational-waveform modes for spin-aligned binaries at the 3.5PN order. Physical Review D, 106(12), 124018. doi:10.1103/physrevd.106.124018
  • Khalil, M., Mendes, R. F. P., Ortiz, N., & Steinhoff, J. (2022). Effective-action model for dynamical scalarization beyond the adiabatic approximation. Physical Review D, 106(10), 104016. doi:10.1103/physrevd.106.104016
  • Khalil, M., Buonanno, A., Steinhoff, J., & Vines, J. (2022). Energetics and scattering of gravitational two-body systems at fourth post-Minkowskian order. Physical Review D, 106(2), 024042. doi:10.1103/physrevd.106.024042
  • Buonanno, A., Khalil, M., O'Connell, D., Roiban, R., Solon, M. P., & Zeng, M. (2022). Snowmass White Paper: Gravitational Waves and Scattering Amplitudes. arxiv:2204.05194v1
  • Ramos-Buades, A., Buonanno, A., Khalil, M., & Ossokine, S. (2022). Effective-one-body multipolar waveforms for eccentric binary black holes with nonprecessing spins. Physical Review D, 105(4), 044035. doi:10.1103/physrevd.105.044035
  • Khalil, M. (2021). Gravitational spin-orbit dynamics at the fifth-and-a-half post-Newtonian order. Physical Review D, 104(12), 124015. doi:10.1103/physrevd.104.124015
  • Khalil, M., Buonanno, A., Steinhoff, J., & Vines, J. (2021). Radiation-reaction force and multipolar waveforms for eccentric, spin-aligned binaries in the effective-one-body formalism. Physical Review D, 104(2), 024046. doi:10.1103/physrevd.104.024046
  • Modeling gravitational waves from compact binaries, Max Planck Society Annual Meeting, Berlin, Germany, 2024/06/12
  • Analytical modeling of dynamical scalarization in an effective-action approach, Connecting the dots: Toward inspiral-merger-ringdown gravitational waveforms beyond general relativity, Max Planck Institute for Gravitational Physics, Potsdam, Germany, 2023/06/15
  • Analytical modeling of spinning compact binaries, Universidad Nacional Autonoma de Mexico, 2022/11/01
  • Session 2 - Mohammed Khalil, POSTDOC WELCOME 2022, 2022/10/24, PIRSA:22100116
  • Energetics and scattering of compact objects at fourth post-Minkowskian order, 23rd International Conference on General Relativity and Gravitation, 2022/07/01
  • Synergies between post-Newtonian and self-force approaches to the dynamics of spinning binaries, University of Southampton, 2022/06/01
  • Energetics and scattering at fourth post-Minkowskian order, DESY, Zeuthen, 2022/05/01