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Title: Quantum entanglement and the self-trapping transition in polaronic systems
Authors: Zhao, Yang
Zanardi, Paolo
Chen, Guan Hua
Keywords: DRNTU::Science::Physics::Atomic physics::Solid state physics
Issue Date: 2004
Source: Zhao, Y., Zanardi, P., & Chen, G. H. (2004). Quantum Entanglement and the Self-Trapping Transition in Polaronic Systems. Physical review B, 70, 1-5.
Series/Report no.: Physical review B
Abstract: 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 and large polaron regimes as well as the crossover in between. The small (large) polaron regime corresponds to a high (low) degree of bipartite quantum entanglement between the exciton and the phonon cloud that clothes the exciton. Moreover, the self-trapping transition is clearly displayed by a sharp drop of exciton-phonon entanglement.
DOI: 10.1103/PhysRevB.70.195113
Rights: © 2004 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at: [Doi:]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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