Zhu, Siegel, Mitman, Isi, et al. (2025). Black Hole Spectroscopy for Precessing Binary Black Hole Coalescences. Phys. Rev. D 111, 6, p. 064052. arXiv:2312.08588.
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
Mitman, Pretto, Siegel, Scheel, et al. (2025). Probing the ringdown perturbation in binary black hole coalescences with an improved quasi-normal mode extraction algorithm. Submitted to Phys. Rev. D. arXiv:2503.09678.
Re, Mitman, Stein, Scheel, et al. (2025). Modeling the BMS transformation induced by a binary black hole merger. Submitted to Phys. Rev. D. arXiv:2503.09569.
Deppe, Heisenberg, Kidder, Maibach, et al. (2025). Signatures of Quantum Gravity in Gravitational Wave Memory. Submitted to Phys. Rev. D. arXiv:2502.20584.
Gao, Cook, Kidder, Pfeiffer, et al. (2025). The robustness of extracting quasinormal mode information from black hole merger simulations. Submitted to Phys. Rev. D. arXiv:2502.15921.
Ma, Nelli, Moxon, Scheel, et al. (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, Nelli, Deppe, Vu, et al. (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.
Ma, Scheel, Moxon, Nelli, et al. (2024). Merging black holes with Cauchy-characteristic matching: Computation of late-time tails. Submitted to Phys. Rev. D. arXiv:2412.06906.
Amicis, Rüter, Carullo, Albanesi, et al. (2024). Late-time tails in nonlinear evolutions of merging black holes. Submitted to Phys. Rev. D. arXiv:2412.06887.
Giesler, Ma, Mitman, Oshita, et al. (2024). Overtones and Nonlinearities in Binary Black Hole Ringdowns. Submitted to Phys. Rev. D. arXiv:2411.11269.
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.