Negative superinflating bipartite fluctuations near exceptional points in $\mathcal{P}\mathcal{T}$-symmetric models

Wei Pan, Xiaoqun Wang, Haiqing Lin +1

We investigate bipartite particle number fluctuations near the rank-$2$ exceptional points (EPs) of $\mathcal{P}\mathcal{T}$-symmetric Su-Schrieffer-Heeger models. Beyond a conformal field t…