activity
20032026
most citedEfficiency of energy transfer in a light-harvesting system under quantum coherence

321 citations · 1.4k across the 34 of their papers we have counts for

collaborators

35 papers

quant-ph2026★ 1 cited

Characterizing the functional role of quantum coherence in energy transfer

Hallmann Óskar Gestsson, Alexandra Olaya-Castro

Quantum coherence has been suggested to play a role in excitation energy transfer in open quantum systems, yet a quantitative approach to assessing its influence on the transfer pr…

physics.chem-ph2025★ 1 cited

Signatures of coherent energy transfer and exciton delocalization in time-resolved optical cross correlations

Hallmann Óskar Gestsson, Alexandra Olaya-Castro

We investigate how optical second-order cross correlations witness the quantum features of a prototype donor-acceptor light-harvesting unit. By considering a pair of detuned two-le…

physics.chem-ph2024★ 2 cited

Non-perturbative exciton transfer rate analysis of the Fenna-Matthews-Olson photosynthetic complex under reduced and oxidised conditions

Hallmann Ó. Gestsson, Charlie Nation, Jacob S. Higgins +2

Two-dimensional optical spectroscopy experiments have shown that exciton transfer pathways in the Fenna-Matthews-Olson (FMO) photosynthetic complex differ drastically under reduced…

quant-ph2024★ 4 cited

Perturbation-theory approach for predicting vibronic selectivity by entangled-photon-pair absorption

C. D. Rodriguez-Camargo, H. O. Gestsson, C. Nation +2

Using second-order perturbation theory in the light-matter interaction, we derive an analytical approximation for the vibronic populations of a diatomic system excited by ultrabroa…

quant-ph2024

NSF-UKRI Bilateral Workshop: Quantum Information Science in Chemistry

Gregory D Scholes, Alexandra Olaya-Castro, Shaul Mukamel +4

This document summarizes the context and main outcomes of the discussions that took place during the NSF-UKRI bilateral workshop on Quantum Information Science in Chemistry, held o…

physics.chem-ph2024

Theoretical study of the influence of the photosynthetic membrane on B800-B850 energy transfer within the peripheral light-harvesting complex LH2

Chawntell Kulkarni, Hallmann Óskar Gestsson, Lorenzo Cupellini +2

Photosynthetic organisms rely on a network of light-harvesting protein-pigment complexes to efficiently absorb sunlight and transfer excitation energy to reaction center proteins f…