I work as a Senior Research Scientist at GNS Healthcare (2018–present), where I develop cutting-edge causal machine learning algorithms.

As a Postdoctoral Research Associate at West Virginia University (2015–18), I developed custom open source computer code to simulate and study gravitational phenomena which became 180 times more efficient than our competitors. This work has been presented at 5 conferences, lead to 2 publications in Physical Review D, and the creation of an Open Source Project named SENR/NRPy+. My primary research focus involves generating accurate numerical simulations of the inspiral and merger phases of orbiting black hole binaries. In particular, I am interested in exploring the extreme limits of general relativity in the regime of near maximal intrinsic angular momentum. In addition to probing the peculiarities of nonlinear gravity theory, I generate astrophysical gravitational waveforms for use in gravitational wave detection experiments.


Curriculum Vitae

PhD Dissertation: Puncture Initial Data and Evolution of Black Hole Binaries with High Speed and High Spin (2015)


  1. Numerical generation of vector potentials from specified magnetic fields
    Zachary J. Silberman, Thomas R. Adams, Joshua A. Faber, Zachariah B. Etienne, and Ian Ruchlin
    Journal of Computational Physics (2019); arXiv:1803.10207
  2. Numerical relativity in spherical coordinates with the Einstein Toolkit
    Vassilios Mewes, Yosef Zlochower, Manuela Campanelli, Ian Ruchlin, Zachariah B. Etienne, and Thomas W. Baumgarte
    Physical Review D (97) 084059 (2018); arXiv:1802.09625.
  3. SENR/NRPy+: Numerical relativity in singular curvilinear coordinate systems
    Ian Ruchlin, Zachariah B. Etienne, and Thomas W. Baumgarte
    Physical Review D (97) 064036 (2018); arXiv:1712.07658
  4. Evolutions of unequal mass, highly spinning black hole binaries
    James Healy, Carlos O. Lousto, Ian Ruchlin, and Yosef Zlochower
    Physical Review D (97) 104026 (2018); arXiv:1711.09041
  5. Evolutions of nearly maximally spinning black hole binaries using the moving puncture approach
    Yosef Zlochower, James Healy, Carlos O. Lousto, and Ian Ruchlin
    Physical Review D (96) 044002 (2017); arXiv:1706:01980
  6. Puncture initial data for black-hole binaries with high spins and high boosts
    Ian Ruchlin, James Healy, Carlos O. Lousto, and Yosef Zlochower
    Physical Review D (95) 024033 (2017); arXiv:1410.8607
  7. High energy collisions of black holes numerically revisited
    James Healy, Ian Ruchlin, Carlos O. Lousto, and Yosef Zlochower
    Physical Review D (94) 104020 (2016); arXiv:1506.06153
  8. Calculating a confidence interval on the sum of binned leakage
    Ian Ruchlin and Richard W. Schnee
    Nuclear Instruments and Methods in Physics Research Section A. Volume 664, Issue 1 (2012); arXiv:1106.6296