[HTML][HTML] New horizons for fundamental physics with LISA

…, S Nampalliwar, D Nichols, M Okounkova… - Living Reviews in …, 2022 - Springer
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the
fundamental theory of nature at play in the extreme gravity regime, where the gravitational …

The SXS Collaboration catalog of binary black hole simulations

…, P Kumar, K Kuper, H Lim, M Okounkova… - … and Quantum Gravity, 2019 - iopscience.iop.org
Accurate models of gravitational waves from merging black holes are necessary for detectors
to observe as many events as possible while extracting the maximum science. Near the …

Numerical binary black hole mergers in dynamical Chern-Simons gravity: Scalar field

M Okounkova, LC Stein, MA Scheel, DA Hemberger - Physical Review D, 2017 - APS
Testing general relativity in the nonlinear, dynamical, strong-field regime of gravity is one of
the major goals of gravitational wave astrophysics. Performing precision tests of general …

Numerical binary black hole collisions in dynamical Chern-Simons gravity

M Okounkova, LC Stein, MA Scheel, SA Teukolsky - Physical Review D, 2019 - APS
We produce the first numerical relativity binary black hole gravitational waveforms in a
higher-curvature theory beyond general relativity. In particular, we study head-on collisions of …

Numerical relativity simulation of GW150914 in Einstein-dilaton-Gauss-Bonnet gravity

M Okounkova - Physical Review D, 2020 - APS
A present challenge in testing general relativity (GR) with binary black hole gravitational
wave detections is the inability to perform model-dependent tests due to the lack of merger …

Numerical relativity simulation of GW150914 beyond general relativity

M Okounkova, LC Stein, J Moxon, MA Scheel… - Physical Review D, 2020 - APS
We produce the first astrophysically relevant numerical binary black hole gravitational waveform
in a higher-curvature theory of gravity beyond general relativity. We simulate a system …

On choosing the start time of binary black hole ringdowns

S Bhagwat, M Okounkova, SW Ballmer, DA Brown… - Physical Review D, 2018 - APS
The final stage of a binary black hole merger is ringdown, in which the system is described
by a Kerr black hole with quasinormal mode perturbations. It is far from straightforward to …

Gravitational wave inference on a numerical-relativity simulation of a black hole merger beyond general relativity

M Okounkova, M Isi, K Chatziioannou, WM Farr - Physical Review D, 2023 - APS
We apply common gravitational wave inference procedures on binary black hole merger
waveforms beyond general relativity. We consider dynamical Chern-Simons gravity, a modified …

Constraining gravitational wave amplitude birefringence and Chern-Simons gravity with GWTC-2

M Okounkova, WM Farr, M Isi, LC Stein - Physical Review D, 2022 - APS
We perform a new test of general relativity (GR) with signals from GWTC-2, the LIGO and
Virgo catalog of gravitational wave detections. We search for the presence of amplitude …

Seiberg-Witten theory and random partitions

NA Nekrasov, A Okounkov - The Unity of Mathematics: In Honor of the …, 2006 - Springer
We study $$ \mathcal{N} = 2 $$ supersymmetric four-dimensional gauge theories, in a certain
525-02 = 2 supergravity background, called theΩ-background. The partition function of the …