Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis

Thermal light sources can produce photons with strong spatial correlations. We study the role that these correlations might potentially play in bacterial photosynthesis. Our findings show a relationship between the transversal distance between consecutive absorptions and the efficiency of the photos...

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Main Authors: Pedro D. Manrique, Felipe Caycedo-Soler, Adriana De Mendoza, Ferney Rodríguez, Luis Quiroga, Neil F. Johnson
Format: Article
Language:English
Published: Elsevier 2016-01-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379716304090
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author Pedro D. Manrique
Felipe Caycedo-Soler
Adriana De Mendoza
Ferney Rodríguez
Luis Quiroga
Neil F. Johnson
author_facet Pedro D. Manrique
Felipe Caycedo-Soler
Adriana De Mendoza
Ferney Rodríguez
Luis Quiroga
Neil F. Johnson
author_sort Pedro D. Manrique
collection DOAJ
description Thermal light sources can produce photons with strong spatial correlations. We study the role that these correlations might potentially play in bacterial photosynthesis. Our findings show a relationship between the transversal distance between consecutive absorptions and the efficiency of the photosynthetic process. Furthermore, membranes where the clustering of core complexes (so-called RC-LH1) is high, display a range where the organism profits maximally from the spatial correlation of the incoming light. By contrast, no maximum is found for membranes with low core-core clustering. We employ a detailed membrane model with state-of-the-art empirical inputs. Our results suggest that the organization of the membrane’s antenna complexes may be well-suited to the spatial correlations present in an natural light source. Future experiments will be needed to test this prediction. Keywords: Photo-bunching, Spatial correlation, Photosynthesis, Purple bacteria
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spelling doaj.art-66c566ae5e0647a08bbb423973d026b82022-12-21T18:35:40ZengElsevierResults in Physics2211-37972016-01-016957960Exploring the effects of photon correlations from thermal sources on bacterial photosynthesisPedro D. Manrique0Felipe Caycedo-Soler1Adriana De Mendoza2Ferney Rodríguez3Luis Quiroga4Neil F. Johnson5Physics Department, University of Miami, Coral Gables, FL 33126, USA; Corresponding author.Department of Physics, Universitat Ulm, GermanyDepartamento de Física, Universidad de Los Andes, Bogotá, ColombiaDepartamento de Física, Universidad de Los Andes, Bogotá, ColombiaDepartamento de Física, Universidad de Los Andes, Bogotá, ColombiaPhysics Department, University of Miami, Coral Gables, FL 33126, USAThermal light sources can produce photons with strong spatial correlations. We study the role that these correlations might potentially play in bacterial photosynthesis. Our findings show a relationship between the transversal distance between consecutive absorptions and the efficiency of the photosynthetic process. Furthermore, membranes where the clustering of core complexes (so-called RC-LH1) is high, display a range where the organism profits maximally from the spatial correlation of the incoming light. By contrast, no maximum is found for membranes with low core-core clustering. We employ a detailed membrane model with state-of-the-art empirical inputs. Our results suggest that the organization of the membrane’s antenna complexes may be well-suited to the spatial correlations present in an natural light source. Future experiments will be needed to test this prediction. Keywords: Photo-bunching, Spatial correlation, Photosynthesis, Purple bacteriahttp://www.sciencedirect.com/science/article/pii/S2211379716304090
spellingShingle Pedro D. Manrique
Felipe Caycedo-Soler
Adriana De Mendoza
Ferney Rodríguez
Luis Quiroga
Neil F. Johnson
Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
Results in Physics
title Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
title_full Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
title_fullStr Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
title_full_unstemmed Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
title_short Exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
title_sort exploring the effects of photon correlations from thermal sources on bacterial photosynthesis
url http://www.sciencedirect.com/science/article/pii/S2211379716304090
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