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Trapped Ion Quantum Computing

Characterizing the functional role of quantum coherence in energy transfer

arXiv
Authors: Hallmann Óskar Gestsson, Alexandra Olaya-Castro

Year

2026

Paper ID

68735

Status

Preprint

Abstract Read

~2 min

Abstract Words

90

Citations

N/A

Abstract

Quantum coherence is understood to play a role in excitation energy transfer in open quantum systems, yet a quantitative approach to assessing its influence on the transfer process is still missing. Using Nakajima-Zwanzig projection operators, we derive a general memory kernel identity that enables us to characterize and quantify the impact of coherence in the eigenenergy basis on a generalized rate of energy transfer. Applying our approach to the electronic dynamics of a dimer coupled to a structured phonon bath, we demonstrate how quantum coherence acts to modulate energy transfer.

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  • Quantum coherence is understood to play a role in excitation energy transfer in open quantum systems, yet a quantitative approach to assessing its influence on the transfer...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2606.13404 [2] arXiv https://arxiv.org/abs/2606.13404 [3] Publisher https://arxiv.org/abs/2606.13404

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