Simple harmonic oscillation in a non-Hermitian Su-Schrieffer-Heeger chain at the exceptional point

The balance of gain and loss in an open system may maintain certain Hermitian dynamical behaviors which can be hardly observed in a popular Hermitian system. In this paper, we systematically study a 1D $\mathcal{PT}$-symmetry non-Hermitian Su-Schrieffer-Heeger model with open boundary condition base... View More