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Nature 451, 22-23 (3 January 2008) | doi:10.1038/451022b; Published online 2 January 2008

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Magnetism: Freedom for the poles

Oleg Tchernyshyov1

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Magnetic poles always come in twos, a north and a south. That received wisdom has not stopped physicists from searching for 'monopoles' in accelerators and cosmic rays. Theory now indicates a better place to look.

Despite some tantalizing clues for their existence from the realms of quantum physics, magnetic monopoles — single magnetic poles without a partner — remain elusive after decades of searching. Do they exist at all in the real world?

  1. Oleg Tchernyshyov is in the Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, USA.
    Email: olegt@jhu.edu