2 papers
cond-mat.quant-gas2024
Geometry Dynamics in Chiral Superfluids
Yuting Bai, Gabriel Cardoso, Rajae Malek +1
We investigate the geometric response of chiral superfluids when coupled to a dynamic background geometry. We find that geometry fluctuations, represented by the flexural mode, int…
cond-mat.mes-hall2024
Braids and Higher-order Exceptional Points from the Interplay Between Lossy Defects and Topological Boundary States
Zi-Jian Li, Gabriel Cardoso, Emil J. Bergholtz +1
We show that the perturbation of the Su-Schrieffer-Heeger chain by a localized lossy defect leads to higher-order exceptional points (HOEP). Depending on the location of the defect…