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The quantum needle of the avian magnetic compass
Open accessAbstract
Significance: Billions of birds fly thousands of kilometers every year between their breeding and wintering grounds, helped by an extraordinary ability to detect the direction of the Earth’s magnetic field. The biophysical sensory mechanism at the heart of this compass is thought to rely on magnetically sensitive, light-dependent chemical reactions in cryptochrome proteins in the eye. Thus far, no theoretical model has been able to account for the <5° precision with which migratory birds are able to detect the geomagnetic field vector. Here, using computer simulations, we show that genuinely quantum mechanical, long-lived spin coherences in realistic models of cryptochrome can provide the necessary precision. The crucial structural and dynamical molecular properties are identified.
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“In response to this it has been suggested that the incredible accuracy of the compass is the result of avoided crossings of the spin energy levels of radicals formed in cryptochromes, a process that is genuinely quantum mechanical [99].”
From The future of quantum biology (2018) · cites this paper as [99]
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Galván, I., Hassasfar, A., Adams, B., & Petruccione, F. (2022) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2022.08.08.503164
Fundamental aspects of quantum biology
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Knoflacher, M. (2024) · Springer eBooks · doi:10.1007/978-3-662-69423-7_4
Scientific Arguments against Free Will
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.003.0004
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.002.0004
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.002.0005
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.002.0009
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.003.0003
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.003.0005
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.003.0002
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.003.0001
Tse, P. U. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780198876953.002.0008
Metadata
- Authors
- Hiscock, H. G., Worster, S., Kattnig, D. R., Steers, C., Jin, Y., Manolopoulos, D. E., Mouritsen, H., & Hore, P. J.
- Affiliations
- University of Oxford (GB)
- Carl von Ossietzky Universität Oldenburg (DE)
- ORCID
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2016-04-04
- Volume
- 113
- Issue
- 17
- Pages
- 4634-4639
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC4855607
- OpenAlex
- W2338302371
- Cited by
- 215
- References
- 65
- Citations by year
- 2026: 20 · 2025: 23 · 2024: 23 · 2023: 13 · 2022: 19 · 2021: 24 · 2020: 24 · 2019: 15 · 2018: 24 · 2017: 18 · 2016: 11
- FWCI
- 14.31
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Durham Research Online (Durham University) (submittedVersion, cc-by)
- Explore Bristol Research (submittedVersion)
- Bristol Research (University of Bristol) (submittedVersion)
- Funders
- EC | European Research Council (FP7/2007-2013/ERC grant agreement no. 340451)
- DOD | Air Force Office of Scientific Research (FA9550-14-1-0095)
- Deutsche Forschungsgemeinschaft (GRK 1885)
- Volkswagen Foundation (Lichtenberg Professur)
- EMF Biological Research Trust (BRT 15/50)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Electromagnetic Fields and Biological Effects
- Physical Sciences › Chemistry › Spectroscopy › Electron Spin Resonance Studies
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geomagnetism and Paleomagnetism Studies
- Keywords
- cryptochrome, migratory birds, spin coherence, coherent spin dynamics, quantum biology, electromagnetic noise
- MeSH terms
- Animals, Birds, Computer Simulation, Dose-Response Relationship, Radiation, Homing Behavior, Models, Biological, Models, Chemical, Quantum Theory, Radiation Dosage, Signal Transduction, Animal Migration, Cryptochromes, Magnetometry, Magnetic Fields
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