Ground-state properties of sub-Ohmic spin-boson model with simultaneous diagonal and off-diagonal coupling

• Main Authors: Zhou, Nengji, Chen, Lipeng, Zhao, Yang, Mozyrsky, Dima, Chernyak, Vladimir
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Atomic physics::Quantum theory
• Online Access: https://hdl.handle.net/10356/103101; http://hdl.handle.net/10220/24399
• Institution: Nanyang Technological University

By employing a variational approach, the density matrix renormalization group (DMRG), the exact diagonalization, and symmetry and mean-field analyses, the ground-state properties of the two-bath spin-boson model with simultaneous diagonal and off-diagonal coupling are systematically studied in the s...