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Mathematical physics

On the right scent

Searching for the source of a smell is hampered by the absence of pervasive local cues that point the searcher in the right direction. A strategy based on maximal information could show the way.

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Figure 1: Scent trackers.



  1. Berg, H. C. Nature 254, 389–392 (1975).

    ADS  CAS  Article  Google Scholar 

  2. Vergassola, M., Villermaux, E. & Shraiman, B. I. Nature 445, 406–409 (2007).

    ADS  CAS  Article  Google Scholar 

  3. Vickers, N. J. Biol. Bull. 198, 203–212 (2000).

    CAS  Article  Google Scholar 

  4. Marques, L. & de Almeida, A. (eds) Auton. Robots 20, 183–287 (2006).

    Article  Google Scholar 

  5. Thrun, S., Burgard, W. & Fox, D. Probabilistic Robotics (MIT Press, 2005).

    MATH  Google Scholar 

  6. Kennedy, J. S. & Marsh, D. Science 184, 999–1001 (1974).

    ADS  CAS  Article  Google Scholar 

  7. Belanger, J. H. & Arbas, E. A. J. Comp. Physiol. A 183, 345–360 (1998).

    Article  Google Scholar 

  8. Balkovsky, E. & Shraiman, B. I. Proc. Natl Acad. Sci. USA 99, 12589–12593 (2002).

    ADS  MathSciNet  CAS  Article  Google Scholar 

  9. Kennedy, J. S. Physiol. Entomol. 8, 109–120 (1983).

    Article  Google Scholar 

  10. Reynolds, A. M. Phys. Rev. E 72, 041928 (2005).

    ADS  CAS  Article  Google Scholar 

  11. Pang, S. & Farrell, J. A. IEEE Trans. Syst. Man Cybern. B 36, 1068–1080 (2006).

    Article  Google Scholar 

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Martinez, D. On the right scent. Nature 445, 371–372 (2007).

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