Today's arXivsummary: https://arxiv.org/abs/2304.06076 by Krupnitska & Brenig. Authors show that the finite temperature second harmonic generation (2HG) allows one to probe characteristic features of two fractional quasiparticle types. 2HG susceptibility displays oscillatory spectrum set by the fermionic excitations. #CondMat #StrEl #arXiv_2304_06076