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arXiv · 2606.13404

Characterizing the functional role of quantum coherence in energy transfer

Hallmann Óskar Gestsson·Alexandra Olaya-Castro
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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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Hallmann Óskar Gestsson, Alexandra Olaya-Castro. 2026-06-11. Characterizing the functional role of quantum coherence in energy transfer. https://arxiv.org/abs/2606.13404

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