Abstract

Quantum random walks of identical particles are ubiquitous in various fields of physics [1]. They give rise to particle number correlations which have been explored in several discrete systems [2; 3]. However, an essential property of all these quantum systems is their Hermiticity. Recently, parity-time($\text{P}\mathcal{T}$)-symmetric systems [4] attracted much attention. The Hamiltonians of such systems are not necessarily Hermitian, yet they still can exhibit purely real eigenvalue spectra.

© 2013 IEEE