DBI domain walls stay shock-free in the hyperbolic regime across 2D flat space and extended physical setups, with caustics forming only upon loss of hyperbolicity and exhibiting cusp profiles.
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Collapsing axion-like domain walls generate the baryon asymmetry by acting as an effective chemical potential through coupling to the electroweak topological term, with the asymmetry produced via sphaleron processes.
An axion-like particle's domain wall or shock wave induces an electroweak phase boundary whose motion creates a local B+L chemical potential that biases active sphalerons to generate net baryon asymmetry.
Electroweak-symmetric domain walls produce the observed baryon asymmetry via CP-violating semiclassical forces, transport, sphalerons, and interference between the two wall faces in a singlet-extended Standard Model.
Deuterium-to-hydrogen measurements leave most electroweak baryogenesis parameter space unconstrained while imposing stronger exclusions on alternative baryogenesis models.
citing papers explorer
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Hard to shock DBI: wave propagation on planar domain walls
DBI domain walls stay shock-free in the hyperbolic regime across 2D flat space and extended physical setups, with caustics forming only upon loss of hyperbolicity and exhibiting cusp profiles.
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Electroweak Baryogenesis from Collapsing Domain Walls
Collapsing axion-like domain walls generate the baryon asymmetry by acting as an effective chemical potential through coupling to the electroweak topological term, with the asymmetry produced via sphaleron processes.
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Spontaneous Baryogenesis from Axions on Induced Electroweak Walls
An axion-like particle's domain wall or shock wave induces an electroweak phase boundary whose motion creates a local B+L chemical potential that biases active sphalerons to generate net baryon asymmetry.
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Baryon Asymmetry from Electroweak-Symmetric Domain Walls
Electroweak-symmetric domain walls produce the observed baryon asymmetry via CP-violating semiclassical forces, transport, sphalerons, and interference between the two wall faces in a singlet-extended Standard Model.
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Bounds from D/H on baryogenesis models
Deuterium-to-hydrogen measurements leave most electroweak baryogenesis parameter space unconstrained while imposing stronger exclusions on alternative baryogenesis models.