Sustained quantum coherence and entanglement in the avian compass.

@article{Gauger2011SustainedQC,
  title={Sustained quantum coherence and entanglement in the avian compass.},
  author={Erik M Gauger and Elisabeth Rieper and John Lockhart Morton and Simon C. Benjamin and Vlatko Vedral},
  journal={Physical review letters},
  year={2011},
  volume={106 4},
  pages={
          040503
        }
}
In artificial systems, quantum superposition and entanglement typically decay rapidly unless cryogenic temperatures are used. Could life have evolved to exploit such delicate phenomena? Certain migratory birds have the ability to sense very subtle variations in Earth's magnetic field. Here we apply quantum information theory and the widely accepted "radical pair" model to analyze recent experimental observations of the avian compass. We find that superposition and entanglement are sustained in… CONTINUE READING

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