Quantum entanglement and the self-trapping transition in polaronic systems

• Main Authors: Zhao, Yang, Zanardi, Paolo, Chen, Guan Hua
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Science::Physics::Atomic physics::Solid state physics
• Online Access: https://hdl.handle.net/10356/90390; http://hdl.handle.net/10220/6729
• Institution: Nanyang Technological University

We revisit from a quantum-information perspective a classic problem of polaron theory in one dimension. In the context of the Holstein model we show that a simple analysis of quantum entanglement between excitonic and phononic degrees of freedom allows one to effectively characterize both the small...