首页|Dynamics of 2×2 matrix non-Hermitian quantum systems on Bloch sphere
Dynamics of 2×2 matrix non-Hermitian quantum systems on Bloch sphere
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
By casting evolution to the Bloch sphere,the dynamics of 2 x 2 matrix non-Hermitian systems are investigated in detail.This investigation reveals that there are four kinds of dynamical modes for such systems.The different modes are classified by different kinds of fixed points,namely,the elliptic point,spiral point,critical node,and degenerate point.The Hermitian systems and the unbroken PT non-Hermitian cases belong to the category with elliptic points.The degenerate point just corresponds to the systems with exceptional point(EP).The topological properties of the fixed point are also discussed.It is interesting that the topological charge for the degenerate point is two,while the others are one.
non-Hermitian quantum systemtwo-level systemdynamics on the Bloch spherePT-symmetryfixed points
Libin Fu
展开 >
Graduate School of China Academy of Engineering Physics,Beijing 100193,China
NETL
NSTL
万方数据
