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Delocalization and Quantum Entanglement in Physical Systems

Dutta, Rajesh and Bagchi, Biman (2019) Delocalization and Quantum Entanglement in Physical Systems. In: JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 10 (9). pp. 2037-2043.

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Official URL: https://doi.org/10.1021/acs.jpclett.9b00382

Abstract

Quantum coherence and entanglement in an extended interacting system where energy levels are nondegenerate and coupled to a dissipative environment is a common occurrence in nature, like in photosynthetic reaction systems and conjugated polymers. The temperature dependence of quantum coherence in a trimer complex (first three subunits of the Fenna-Matthews-Olson complex) is studied using a temperature dependent quantum stochastic Liouville equation. In the non-Markovian limit, the lowering of temperature induces long-lasting quantum coherence that, in turn, leads to delocalization, whose length grows. The entanglement and coherence length determine the nature of the dynamic localization.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to AMER CHEMICAL SOC
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: LIS Interns
Date Deposited: 24 May 2019 10:47
Last Modified: 24 May 2019 10:47
URI: http://eprints.iisc.ac.in/id/eprint/62727

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