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Title: Probing quantum features of photosynthetic organisms
Authors: Krisnanda, Tanjung
Marletto, Chiara
Vedral, Vlatko
Paternostro, Mauro
Paterek, Tomasz
Keywords: Photosynthetic
Quantum Features
Issue Date: 2018
Source: Krisnanda, T., Marletto, C., Vedral, V., Paternostro, M., & Paterek, T. (2018). Probing quantum features of photosynthetic organisms. npj Quantum Information, 4(1), 60-. doi:10.1038/s41534-018-0110-2
Series/Report no.: npj Quantum Information
Abstract: Recent experiments have demonstrated strong coupling between living bacteria and light. Here we propose a scheme capable of revealing non-classical features of the bacteria (quantum discord of light–bacteria correlations) without exact modelling of the organisms and their interactions with external world. The scheme puts the bacteria in a role of mediators of quantum entanglement between otherwise non-interacting probing light modes. We then propose a plausible model of this experiment, using recently achieved parameters, demonstrating the feasibility of the scheme. Within this model we find that the steady-state entanglement between the probes, which does not depend on the initial conditions, is accompanied by entanglement between the probes and bacteria, and provides independent evidence of the strong coupling between them.
DOI: 10.1038/s41534-018-0110-2
Rights: © 2018 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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