Multipartite quantum entanglement evolution in photosynthetic complexes

Jing Zhu, Sabre Kais, Alán Aspuru-Guzik, Sam Rodriques, Ben Brock, Peter J. Love

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27 Citations (Scopus)


We investigate the evolution of entanglement in the Fenna-Matthew-Olson (FMO) complex based on simulations using the scaled hierarchical equations of motion approach. We examine the role of entanglement in the FMO complex by direct computation of the convex roof. We use monogamy to give a lower bound for entanglement and obtain an upper bound from the evaluation of the convex roof. Examination of bipartite measures for all possible bipartitions provides a complete picture of the multipartite entanglement. Our results support the hypothesis that entanglement is maximum primary along the two distinct electronic energy transfer pathways. In addition, we note that the structure of multipartite entanglement is quite simple, suggesting that there are constraints on the mixed state entanglement beyond those due to monogamy.

Original languageEnglish
Article number074112
JournalJournal of Chemical Physics
Issue number7
Publication statusPublished - 21 Aug 2012
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry
  • Medicine(all)

Cite this

Zhu, J., Kais, S., Aspuru-Guzik, A., Rodriques, S., Brock, B., & Love, P. J. (2012). Multipartite quantum entanglement evolution in photosynthetic complexes. Journal of Chemical Physics, 137(7), [074112].