Dynamics of the spin-boson model : a comparison of the multiple Davydov D1, D1.5, D2 Ansätze

• Main Authors: Chen, Lipeng, Gelin, Maxim, Zhao, Yang
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Spin-boson Model; Davydov Ansätze
• Online Access: https://hdl.handle.net/10356/136766
• Institution: Nanyang Technological University

Accuracies of three multiple Davydov Ansätze, namely, the multi-D1, the multi-D1.5, and the multi-D2 Ansätz, in describing the population dynamics of the spin boson model, are carefully examined by a detailed comparison with numerically exact (multilayer) multiconfiguration time-dependent Hartree me...