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.

Krisnanda T., Marletto C., Vedral V., Paternostro M., Paterek T. (2018). Probing quantum features of photosynthetic organisms. NPJ QUANTUM INFORMATION, 4(1) [10.1038/s41534-018-0110-2].

Probing quantum features of photosynthetic organisms

Paternostro M.
Co-ultimo
Formal Analysis
;
2018-11-22

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.
22-nov-2018
Settore FIS/03 - Fisica Della Materia
Krisnanda T., Marletto C., Vedral V., Paternostro M., Paterek T. (2018). Probing quantum features of photosynthetic organisms. NPJ QUANTUM INFORMATION, 4(1) [10.1038/s41534-018-0110-2].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/631236
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