Wittek et al. +Vu (2025). Relieving Scale Disparity in Binary Black Hole Simulations. Phys. Rev. Lett. 134, 25, p. 251402. arXiv:2410.22290.
Computational physicist at Caltech in numerical relativity, computational astrophysics, and high-performance computing. Developing the next generation of massively parallel simulations of black holes. Also passionate about software development, design, data visualisation and teaching. I changed my last name from Fischer to Vu in 2022.
Recent publications
Zhu et al. +Vu (2025). Black Hole Spectroscopy for Precessing Binary Black Hole Coalescences. Phys. Rev. D 111, 6, p. 064052. arXiv:2312.08588.
Ma et al. +Vu (2025). Einstein-Klein-Gordon system via Cauchy-characteristic evolution: Computation of memory and ringdown tail. Class. Quant. Grav. 42, 5, p. 055006. arXiv:2409.06141.
Lovelace et al. +Vu (2025). Simulating binary black hole mergers using discontinuous Galerkin methods. Class. Quant. Grav. 42, 3, p. 035001. arXiv:2410.00265.
Nee, Lara, Pfeiffer, and Vu (2025). Quasistationary hair for binary black hole initial data in scalar Gauss-Bonnet gravity. Phys. Rev. D 111, 2, p. 024061. arXiv:2406.08410.
Zertuche et al. +Vu (2025). High-precision ringdown surrogate model for nonprecessing binary black holes. Phys. Rev. D 112, 2, p. 024077. arXiv:2408.05300.
Deppe et al. +Vu (2025). Echoes from beyond: Detecting gravitational-wave quantum imprints with LISA. Phys. Rev. D 111, 12, p. 124035. arXiv:2411.05645.
Giesler et al. +Vu (2025). Overtones and nonlinearities in binary black hole ringdowns. Phys. Rev. D 111, 8, p. 084041. arXiv:2411.11269.
Ma et al. +Vu (2025). Merging black holes with Cauchy-characteristic matching: Computation of late-time tails. Phys. Rev. D 112, 2, p. 024003. arXiv:2412.06906.
Amicis et al. +Vu (2025). Late-Time Tails in Nonlinear Evolutions of Merging Black Holes. Phys. Rev. Lett. 135, 17, p. 171401. arXiv:2412.06887.
Gao et al. +Vu (2025). Robustness of extracting quasinormal mode information from black hole merger simulations. Phys. Rev. D 112, 2, p. 024025. arXiv:2502.15921.
Recent side projects
Visualization of a black hole scattering and capture event
A visualization I created in 2024.
Rendering of a simulation with two black holes that scatter and then merge, emitting gravitational waves.
Visualization of GW190521
A visualization I created in 2020.
Renderings of the particulary high-mass gravitational-wave event measured by LIGO and Virgo on May 21, 2019.
Visualization of GW190814
A visualization I created in 2020.
Renderings of the highly unequal-mass gravitational-wave event measured by LIGO and Virgo on Aug 14, 2019.
Visualization of GW190412
A visualization I created in 2020.
Widely publicized renderings of the first unequal-mass and precessing gravitational-wave event measured by LIGO and Virgo on Apr 12, 2019.