A variational master equation approach to quantum dynamics with off-diagonal coupling in a sub-Ohmic environment

• Main Authors: Sun, Ke-Wei, Fujihashi, Yuta, Ishizaki, Akihito, Zhao, Yang
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: Quantum coherence; Polarons
• Online Access: https://hdl.handle.net/10356/81651; http://hdl.handle.net/10220/40902
• Institution: Nanyang Technological University

A master equation approach based on an optimized polaron transformation is adopted for dynamics simulation with simultaneous diagonal and off-diagonal spin-boson coupling. Two types of bath spectral density functions are considered, the Ohmic and the sub-Ohmic. The off-diagonal coupling leads asympt...