Collapsing domain walls generically form cuspidal edge and vertex singularities captured by Nambu-Goto and eikonal approximations and reproduced in field theory simulations.
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Sideband occupations at a sharp Fermi edge in Floquet-driven non-interacting fermions are governed exactly by the discrete Bessel kernel, converging to the Airy kernel on the A^{1/3} scale with direct consequences for shot-noise slopes.
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Cuspidal Singularities in Collapsing Domain Walls
Collapsing domain walls generically form cuspidal edge and vertex singularities captured by Nambu-Goto and eikonal approximations and reproduced in field theory simulations.
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Edge universality in Floquet sideband spectra
Sideband occupations at a sharp Fermi edge in Floquet-driven non-interacting fermions are governed exactly by the discrete Bessel kernel, converging to the Airy kernel on the A^{1/3} scale with direct consequences for shot-noise slopes.