# first.items[].content
https://www. science.org/doi/10.1126/sciadv.adt4623

"The proteins studied…form vast cytoskeletal architectures across almost all domains of carbon-based life, and they exhibit single-photon superradiance. That is, even in the limit of a single photon shared coherently across n quantum two-level systems, these protein architectures support superradiant states (with radiative decay rates nγ>Γj>γ for each state j) that are strongly coupled to the electromagnetic field due to their collective long-range interaction."

# first.items[].contentMap.en
https://www. science.org/doi/10.1126/sciadv.adt4623

"The proteins studied…form vast cytoskeletal architectures across almost all domains of carbon-based life, and they exhibit single-photon superradiance. That is, even in the limit of a single photon shared coherently across n quantum two-level systems, these protein architectures support superradiant states (with radiative decay rates nγ>Γj>γ for each state j) that are strongly coupled to the electromagnetic field due to their collective long-range interaction."

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Fig. 1. Living systems maintain information-processing architectures using photoexcited quantum degrees of freedom.
The computational capacities of aneural organisms (A) and neurons (B) have been drastically underestimated by considering only classical information channels such as ionic flows and action potentials, which achieve maximum computing speeds of ∼103 ops/s. However, it has been recently confirmed by fluorescence quantum yield experiments (1) that large networks of quantum emitters in cytoskeletal polymers support superradiant states at room temperature, with maximum speeds of ∼1012 to 1013 ops/s, more than a billion times faster and within two orders of magnitude of the Margolus-Levitin limit for ultraviolet-photoexcited states. These protein networks of quantum emitters are found in both aneural eukaryotic organisms (D) as well as in stable, organized bundles in neuronal axons (E). In this work, quantitative comparisons are made between the computations that can have been performed by all superradiant life in the history of our planet, and the computations that can have been performed by the entire matter-dominated universe with which such life is causally connected. Estimates made for human-made classical computers (C) and future quantum computers with effective error correction (F) motivate a reevaluation of the role of life, computing with quantum degrees of freedom, and artificial intelligences in the cosmos.