Non-equilibrium dynamics of localization phase transition in the non-Hermitian Disorder-Aubry-André model

Abstract: The driven dynamics of localization transitions in a non-Hermitian Disorder-Aubry-Andr\'{e} (DAA) model are thoroughly examined under both open boundary conditions (OBC) and periodic boundary conditions (PBC). Through an analysis of the static properties of observables, including the localization length ($\xi$), inverse participation ratio ($\rm IPR$), and energy gap ($\Delta E$), we found that the critical exponents examined under PBC are also applicable under OBC. The Kibble-Zurek scaling (KZS) for the driven dynamics in the non-Hermitian DAA systems is formulated and numerically verified for different quench directions. Notably, for the dynamical paths considered, boundary conditions had minimal impact on the evolution process. This study generalizes the application of the KZS to the dynamical localization transitions within systems featuring dual localization mechanisms.