Effect of superconducting fluctuations on nonreciprocal dichroism and gyrotropy
The episode discusses a paper on how superconducting fluctuations above critical temperature create nonreciprocal dichroism and gyrotropy in two-dimensional noncentrosymmetric superconductors. The hosts explain that these effects are enhanced near the transition temperature by higher-order symmetry terms, requiring particle-hole asymmetry, and suggest using moiré superlattices to tune these properties for experimental control.