Accuracy of second order perturbation theory in the polaron and variational polaron frames

• Main Authors: Lee, Chee Kong, Moix, Jeremy, Cao, Jianshu
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/95344; http://hdl.handle.net/10220/9179
• Institution: Nanyang Technological University

In the study of open quantum systems, the polaron transformation has recently attracted a renewed interest as it offers the possibility to explore the strong system-bath coupling regime. Despite this interest, a clear and unambiguous analysis of the regimes of validity of the polaron transformation...