Nonlinear modes in rotating double well potential with parity–time symmetry

We investigate the nonlinear modes in a rotating double well potential with 79T symmetry. Focus on the existence and stability of the nonlinear PT modes in this system, we found that five types of PT modes can stably exist by given certain parameter settings. The multistable area between these modes are studied numerically and the bistable and tristable areas are delimited. With different input trial wavefunctions, five types of solitary wave modes are identified. We found that the rotating of the potential can significantly affect the power flow of the fundamental harmonic mode, whose effect is absent for the other modes.     

用MCH方法研究库仑屏蔽势的高角动量能谱

以库仑屏蔽势为模型,用蒙特卡罗哈密顿方法对库仑屏蔽势束缚态进行研究,并把结果和传统的数值解一维薛定谔方程的方法相比较,在基态或激发态,都得出相一致的结果.     

共振吸收波导阵列的原理、特性、制备与应用

光子晶体、量子光学、超快光学与微纳光学的发展,使得操控光子的发射与传输特性成为可能.综述了具有复折射率周期性调制的共振吸收光子晶格,并着重介绍了共振吸收波导阵列的原理、光学特性、样品制备与应用.     

用蒙特卡罗哈密顿量方法研究非S态

以氢原子为例，验证了Monte Carlo Hamiltonian(MCH)方法推广应用到量子力学系统中在原点发散的势的非S态的有效性，给出估计误差的新思路，得到和解析解相符的能谱和约化径向波函数.