Finite temperature dynamics of a Holstein polaron : the thermo-field dynamics approach

• Main Authors: Chen, Lipeng, Zhao, Yang
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: DRNTU::Engineering::Materials; Density-matrix; Hilbert Space
• Online Access: https://hdl.handle.net/10356/81316; http://hdl.handle.net/10220/47482
• Institution: Nanyang Technological University

Combining the multiple Davydov D2 Ansatz with the method of thermo-field dynamics, we study finite temperature dynamics of a Holstein polaron on a lattice. It has been demonstrated, using the hierarchy equations of motion method as a benchmark, that our approach provides an efficient, robust descrip...