Hydrodynamic analysis of the Schrodinger-Langevin equation for wave packet dynamics

作者：Chou Chia Chun^*

来源：Physics Letters A, 2017, 381(39): 3384-3390.

DOI：10.1016/j.physleta.2017.08.037

• Schrodinger-Langevin equation
• Dissipative Bohmian trajectory
• Eckart barrier
• Metastable state

Frictional effects on the wave packet dynamics of quantum systems are investigated in the framework of the Schrodinger-Langevin equation. The Schrodinger-Langevin equation is directly solved using the split-operator method. Frictional effects impede the propagation and suppress the spreading of the wave packet. Computational results are presented for an Eckart barrier scattering problem, the decay of a metastable state, and the long-time behavior of a decaying quantum system. Significant features of dissipative Bohmian trajectory dynamics are analyzed for these quantum processes.

• 出版日期2017-10-17
• 单位清华大学