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Cited by 181

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

High-Performance Solution of Hierarchical Equations of Motion for Studying Energy Transfer in Light-Harvesting Complexes

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Kreisbeck, Christoph, Kramer, Tobias, Rodríguez, Mirta, Hein, Birgit·2011·Journal of Chemical Theory and Computation

Abstract

Excitonic models of light-harvesting complexes, where the vibrational degrees of freedom are treated as a bath, are commonly used to describe the motion of the electronic excitation through a molecule. Recent experiments point toward the possibility of memory effects in this process and require one to consider time nonlocal propagation techniques. The hierarchical equations of motion (HEOM) were proposed by Ishizaki and Fleming to describe the site-dependent reorganization dynamics of protein environments ( J. Chem. Phys. 2009 , 130 , 234111 ), which plays a significant role in photosynthetic electronic energy transfer. HEOM are often used as a reference for other approximate methods but have been implemented only for small systems due to their adverse computational scaling with the system size. Here, we show that HEOM are also solvable for larger systems, since the underlying algorithm is ideally suited for the usage of graphics processing units (GPU). The tremendous reduction in computational time due to the GPU allows us to perform a systematic study of the energy-transfer efficiency in the Fenna-Matthews-Olson (FMO) light-harvesting complex at physiological temperature under full consideration of memory effects. We find that approximative methods differ qualitatively and quantitatively from the HEOM results and discuss the importance of finite temperature to achieving high energy-transfer efficiencies.

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Metadata

Authors
Kreisbeck, C., Kramer, T., Rodríguez, M., & Hein, B.
Venue
Journal of Chemical Theory and Computation
Published
2011-06-09
Volume
7
Issue
7
Pages
2166-2174
ISSN
  • 1549-9618 (ISSN-L)
  • 1549-9626
OpenAlex
W2013398650
Cited by
181
References
8
FWCI
9.38
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: High-Performance Solution of Hierarchical Equations of Motion for Studying Energy Transfer in Light-Harvesting Complexes. https://app.cochat.ai/papers/10.1021/ct200126d
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Kreisbeck, C., Kramer, T., Rodríguez, M., & Hein, B. (2011). High-Performance Solution of Hierarchical Equations of Motion for Studying Energy Transfer in Light-Harvesting Complexes. Journal of Chemical Theory and Computation. https://doi.org/10.1021/ct200126d

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