2 papers
math.AP2026
From Bogoliubov-de Gennes to Ginzburg-Landau: Critical Points Near in the Non-Magnetic Case
Rupert L. Frank, Christian Hainzl, Dong Hao Ou Yang
We study the relation between the Bogoliubov-de Gennes (BdG) equation and the Ginzburg-Landau (GL) equation for a BCS model without external fields. While previous rigorous derivat…
hep-ph2026
Collective response and noise of a levitated ferromagnet lattice for ultralight dark matter detection
Dongyi Yang, Xiao Yang, Chenxi Sun +1
Ultralight dark matter can induce weak oscillating magnetic-like signals and can therefore be searched for with precision magnetometry. Levitated ferromagnets provide a sensitive p…