Gravitational waves from super-Hubble bubbles

arXiv:2607.24734 · astro-ph.CO, hep-th · Submitted 2026-07-27 · Read on arXiv

Pulkit S. Ghoderao, Arttu Rajantie, Danièle Steer

astro-ph.CO, hep-th

Submitted: 2026-07-27

Comments: 24 pages, 8 figures, 1 table

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Phase Transitions — 20× in this paper · explained in 2 episodes
• Reheating — 5× in this paper · explained in 2 episodes
• Big Bang Nucleosynthesis — 2× in this paper
• Cosmic Microwave Background — 2× in this paper
• alpha — 2× in this paper · explained in 1 episode
• pulsar timing arrays — 2× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Laser Interferometer Space Antenna — 1× in this paper
• Metastability — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Power-law Integrated — 1× in this paper
• Symmetry Breaking — 1× in this paper · explained in 3 episodes
• Universality Class — 1× in this paper · explained in 2 episodes

Sources

• Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions
• Gravitational waves from the sound of a first order phase transition
• The stochastic gravitational wave background from turbulence and magnetic fields generated by a first-order phase transition
• Shocks in the Early Universe
• Gravitational waves from a supercooled electroweak phase transition and their detection with pulsar timing arrays
• Gravitational Wave Production by Collisions: More Bubbles
• General Properties of the Gravitational Wave Spectrum from Phase Transitions
• Gravitational waves from bubble collisions: analytic derivation
• Sound shell model for acoustic gravitational wave production at a first-order phase transition in the early Universe
• Gravitational radiation from a bulk flow model
• Cosmology with the Laser Interferometer Space Antenna
• On the Maximal Strength of a First-Order Electroweak Phase Transition and its Gravitational Wave Signal
• Supercool subtleties of cosmological phase transitions
• Gravitational Waves from Incomplete Inflationary Phase Transitions
• LISA Definition Study Report
• Gravitational waves from bubble collisions in FLRW spacetime
• Analytic derivation of GW spectrum from bubble collisions in FLRW Universe
• Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Prospects for LISA to detect a gravitational-wave background from first order phase transitions

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