A Pairwise Surrogate for Gravitational-Wave Spectra from Highly Relativistic Vacuum Bubble Collisions

arXiv:2610.12389 · gr-qc, astro-ph.CO, hep-ph · Submitted 2026-10-08 · Read on arXiv

gr-qc, astro-ph.CO, hep-ph

Submitted: 2026-10-08

Updated: 2026-10-08

Code: https://github.com/MSABuschmann/PhaseTransitionBuilder

Terminology

• Benchmark — 17× in this paper · explained in 2 episodes
• Phase Transitions — 13× in this paper · explained in 2 episodes
• Calibration — 8× in this paper · explained in 7 episodes
• Initial Data — 4× in this paper · explained in 2 episodes
• Core — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Frequency Dependence — 1× in this paper · explained in 2 episodes

Sources

• Global String Radiation
• Evolution of Axionic Strings and Spectrum of Axions Radiated from Them
• Axion dark matter: strings and their cores
• Axions from Strings: the Attractive Solution
• Dark Matter from Axion Strings with Adaptive Mesh Refinement
• Cosmological phase transitions: from perturbative particle physics to gravitational waves
• On bubble collisions in strongly supercooled phase transitions
• Gravitational wave spectra from strongly supercooled phase transitions
• Updated predictions for gravitational waves produced in a strongly supercooled phase transition
• Friction pressure on relativistic bubble walls
• The Supercooling Window at Weak and Strong Coupling
• Gravitational waves from vacuum first-order phase transitions: from the envelope to the lattice
• Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement
• Gravitational Radiation from Colliding Vacuum Bubbles: Envelope Approximation to Many-Bubble Collisions
• Gravitational Wave Production by Collisions: More Bubbles
• Revisiting the envelope approximation: gravitational waves from bubble collisions
• Gravitational waves from bubble collisions: analytic derivation
• Model-independent features of gravitational waves from bubble collisions
• Gravitational radiation from a bulk flow model
• Gravitational waves from bubble dynamics: Beyond the Envelope

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