PMID- 29619189 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240321 IS - 2041-6520 (Print) IS - 2041-6539 (Electronic) IS - 2041-6520 (Linking) VI - 8 IP - 12 DP - 2017 Dec 1 TI - Machine learning for quantum dynamics: deep learning of excitation energy transfer properties. PG - 8419-8426 LID - 10.1039/c7sc03542j [doi] AB - Understanding the relationship between the structure of light-harvesting systems and their excitation energy transfer properties is of fundamental importance in many applications including the development of next generation photovoltaics. Natural light harvesting in photosynthesis shows remarkable excitation energy transfer properties, which suggests that pigment-protein complexes could serve as blueprints for the design of nature inspired devices. Mechanistic insights into energy transport dynamics can be gained by leveraging numerically involved propagation schemes such as the hierarchical equations of motion (HEOM). Solving these equations, however, is computationally costly due to the adverse scaling with the number of pigments. Therefore virtual high-throughput screening, which has become a powerful tool in material discovery, is less readily applicable for the search of novel excitonic devices. We propose the use of artificial neural networks to bypass the computational limitations of established techniques for exploring the structure-dynamics relation in excitonic systems. Once trained, our neural networks reduce computational costs by several orders of magnitudes. Our predicted transfer times and transfer efficiencies exhibit similar or even higher accuracies than frequently used approximate methods such as secular Redfield theory. FAU - Hase, Florian AU - Hase F AD - Department of Chemistry and Chemical Biology , Harvard University , Cambridge , 02138 , USA . Email: christophkreisbeck@gmail.com ; Email: aspuru@chemistry.harvard.edu ; Tel: +1-617-384-8188. FAU - Kreisbeck, Christoph AU - Kreisbeck C AD - Department of Chemistry and Chemical Biology , Harvard University , Cambridge , 02138 , USA . Email: christophkreisbeck@gmail.com ; Email: aspuru@chemistry.harvard.edu ; Tel: +1-617-384-8188. FAU - Aspuru-Guzik, Alan AU - Aspuru-Guzik A AUID- ORCID: 0000-0003-3711-9761 AD - Department of Chemistry and Chemical Biology , Harvard University , Cambridge , 02138 , USA . Email: christophkreisbeck@gmail.com ; Email: aspuru@chemistry.harvard.edu ; Tel: +1-617-384-8188. LA - eng PT - Journal Article DEP - 20171023 PL - England TA - Chem Sci JT - Chemical science JID - 101545951 PMC - PMC5863613 EDAT- 2018/04/06 06:00 MHDA- 2018/04/06 06:01 PMCR- 2017/12/01 CRDT- 2018/04/06 06:00 PHST- 2017/08/13 00:00 [received] PHST- 2017/10/23 00:00 [accepted] PHST- 2018/04/06 06:00 [entrez] PHST- 2018/04/06 06:00 [pubmed] PHST- 2018/04/06 06:01 [medline] PHST- 2017/12/01 00:00 [pmc-release] AID - c7sc03542j [pii] AID - 10.1039/c7sc03542j [doi] PST - ppublish SO - Chem Sci. 2017 Dec 1;8(12):8419-8426. doi: 10.1039/c7sc03542j. Epub 2017 Oct 23.