59 citations · 392 across the 25 of their papers we have counts for
7 papers · 1 filter
Directed momentum current induced by the PT-symmetric driving
Wen-Lei Zhao, Jiaozi Wang, Xiaohui Wang +1
We investigate the directed momentum current in the quantum kicked rotor model with symmetric deriving potential. For the quantum non-resonance case, the values of q…
The Schrödinger equation for general non-hermitian quantum system
Ye Xiong, Peiqing Tong
We derive a new time-dependent Schrödinger equation(TDSE) for quantum models with non-hermitian Hamiltonian. Within our theory, the TDSE is symmetric in the two Hilbert spaces span…
Comment on "Anomalous Edge State in a Non-Hermitian Lattice"
Ye Xiong, Tianxiang Wang, Xiaohui Wang +1
In this comment, we criticize three main conclusions of the letter\cite{Lee2016}. We show that the concept of fractional winding number(FWN) is factitious, Lee's conclusions on Fig…
Fidelity, fidelity susceptibility and von Neumann entropy to characterize the phase diagram of an extended Harper model
Longyan Gong, Peiqing Tong
For an extended Harper model, the fidelity for two lowest band edge states corresponding to different model parameters, the fidelity susceptibility and the von Neumann entropy of t…
von Neumann entropy and localization properties of two interacting particles in one-dimensional nonuniform systems
Longyan Gong, Peiqing Tong
With the help of von Neumann entropy, we study numerically the localization properties of two interacting particles (TIP) with on-site interactions in one-dimensional disordered, q…
Von Neumann entropy and localization-delocalization transition of electron states in quantum small-world networks
Longyan Gong, Peiqing Tong
The von Neumann entropy for an electron in periodic, disorder and quasiperiodic quantum small-world networks(QSWNs) are studied numerically. For the disorder QSWNs, the derivative…