96 citations · 359 across the 15 of their papers we have counts for
16 papers
From Modal Memory to Topological Relaxation in a Driven Holographic Superfluid
Yan Peng, Bo-Xuan Ge
We study how driving history affects the nonlinear topological relaxation of a holographic superfluid. Different histories are constructed to reach the same present driving conditi…
Relative-Phase Control of Common-Bridge Survival in Collisions of Radially Excited Boson Stars
Bo-Xuan Ge
We show that the relative phase primarily controls the survival, rather than the initial formation, of the common bridge in head-on collisions of radially excited boson stars. In t…
History-Dependent Mode Selection in a Driven Holographic Superfluid
Bo-Xuan Ge
We study finite-rate mode selection among competing Landau-unstable modes in a holographic superfluid. The selected mode is not generally the instantaneous fastest-growing one, whi…
Taiji Resolving Power for the Transverse Scalar Mode of Gravitational Waves
Bo-Xuan Ge, Zhoujian Cao
We investigate how small a co-propagating transverse-scalar component can be resolved by Taiji in an already identified bright tensor chirp. Using a source-tracked tensor-null resp…
Neural variational framework for random Young-diagram limit shapes
Qian Chen, Bo-Xuan Ge
We develop a structure-preserving neural variational framework for random Young-diagram ensembles, with representations adapted to the structure and scaling of each measure. The me…
Massive boson stars: Waveform-based branch diagnosis with neural reconstruction
Bo-Xuan Ge
We investigate whether gravitational waveforms from massive boson-star mergers can be used to diagnose the underlying merger outcome. Using an existing numerical-relativity catalog…
Timing-Window Mechanism for Chain-Like Transients in Collisions of Radially Excited Boson Stars
Bo-Xuan Ge
We show that chain-like transients in head-on collisions of radially excited boson stars are controlled by the binary collision time, not by radial excitation alone. For selected \…
Hair is complicated: Gravitational waves from stable and unstable boson-star mergers
Bo-Xuan Ge, Eugene A. Lim, Ulrich Sperhake +5
We explore the gravitational-wave emission from head-on collisions of equal-mass solitonic boson-star binaries from simulations spanning a two-dimensional parameter space, consisti…
Electromagnetic instability of compact axion stars
Liina M. Chung-Jukko, Eugene A. Lim, David J. E. Marsh +3
If the dark matter is composed of axions, then axion stars are expected to be abundant in the Universe. We demonstrate in fully non-linear (3+1) numerical relativity the instabilit…
Unequal-mass boson-star binaries: Initial data and merger dynamics
Tamara Evstafyeva, Ulrich Sperhake, Thomas Helfer +4
We present a generalization of the curative initial data construction derived for equal-mass compact binaries in Helfer {\it et al} (2019 Phys. Rev. D 99 044046; 2022 Class. Quantu…
The Gravitational Afterglow of Boson Stars
Robin Croft, Thomas Helfer, Bo-Xuan Ge +5
In this work we study the long-lived post-merger gravitational wave signature of a boson-star binary coalescence. We use full numerical relativity to simulate the post-merger and t…
GRChombo: An adaptable numerical relativity code for fundamental physics
Tomas Andrade, Llibert Areste Salo, Josu C. Aurrekoetxea +29
GRChombo is an open-source code for performing Numerical Relativity time evolutions, built on top of the publicly available Chombo software for the solution of PDEs. Whilst GRChomb…
Malaise and remedy of binary boson-star initial data
Thomas Helfer, Ulrich Sperhake, Robin Croft +3
Through numerical simulations of boson-star head-on collisions, we explore the quality of binary initial data obtained from the superposition of single-star spacetimes. Our results…
Investigating two counting methods of the holographic complexity
Jie Jiang, Bo-Xuan Ge
We investigated the distinction between two kinds of "Complexity equals Action"(CA) conjecture counting methods which are separately provided by Brown and Lehner $et\,…
Strong cosmic censorship for the massless Dirac field in the Reissner-Nordstrom-de Sitter spacetime
Boxuan Ge, Jie Jiang, Bin Wang +2
We present the Fermi story of strong cosmic censorship in the near-extremal Reissner-Nordstrom-de Sitter black hole. To this end, we first derive from scratch the criterion for the…
Higher-dimensional charged black holes cannot be over-charged by gedanken experiments
Boxuan Ge, Yuyu Mo, Suting Zhao +1
We reconsider over-charging the higher-dimensional nearly extremal charged black holes using the new version of gedanken experiment proposed recently by Sorce and Wald. As a result…