3 papers
cond-mat.supr-con2026
Measuring intrinsic relaxation rates in superconductors using nonlinear response
Wei-En Tseng, Rahul Nandkishore
We discuss intrinsic relaxation rates in superconductors, and how they may be measured using non-linear optical (terahertz) response. We consider both and -wave superconduct…
cond-mat.str-el2026
Fingerprinting fractons with pump-probe spectroscopy
Wei-En Tseng, Oliver Hart, Rahul Nandkishore
We demonstrate how pump-probe techniques enable specific spectroscopic diagnostics of fracton phases of matter by studying lineon-planon braiding in the paradigmatic X-cube model.…
cond-mat.mes-hall2025
Competing interlayer interactions in twisted monolayer-bilayer graphene: From spontaneous electric polarization to quasi-magic angle
Wei-En Tseng, Mei-Yin Chou
The family of moiré materials provides a powerful platform for tuning interlayer couplings via the twist angle in systems with large spatial periodicity. In trilayer graphene syst…