Variational study of polaron dynamics with the Davydov Ansätze

• المؤلفون الرئيسيون: Luo, Bin, Ye, Jun, Zhao, Yang
• مؤلفون آخرون: School of Materials Science & Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2011
• الموضوعات: DRNTU::Science::Physics::Atomic physics::Solid state physics
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/91937; http://hdl.handle.net/10220/6917
• المؤسسة: Nanyang Technological University

We derive explicit expressions for the amplitudes of the deviation vectors for the time-dependent Davydov D1, D2 and D ̃ Ansätze from the exact solution of the Schro ̈dinger equation for the Holstein polaron. By comparing the deviation amplitudes with the system energies, a systematic study is carried out on the validity of the Davydov Ansätze.