Jacques Posted November 24, 2011 Share Posted November 24, 2011 Electromagnetic waves have an electric and a magnetic component, and photon are 'electromegnetic particle' When a photon pass in an electric field, is he modified ? Same question with a magnetic field ? I know about the Zeeman effect and the Stark effect but I am wondering if the direction of the photon can be modified ... Thanks Link to comment Share on other sites More sharing options...
granpa Posted November 25, 2011 Share Posted November 25, 2011 no. Link to comment Share on other sites More sharing options...
Enthalpy Posted November 27, 2011 Share Posted November 27, 2011 Not to my knowledge. Not under normal engineering conditions. But an experiment was (is?) made in Italy trying to detect a similar effect, where a magnetic field would rotate the polarization of light. Did this imply the creation-annihilation of a pair of exotic particles on the trip? I don't remember. And I wonder... Imagine for instance a photon with just under 2*511keV passing by a heavy nucleus: it must create a virtual electron-positron pair that lasts for some time, and this pair is influenced by the nucleus, especially by the gradient of the electric field. Would this deviate the re-created photon? Relativistic effects of huge fields? A magnetic or electric field is energy so maybe it deviates light as mass does. One person at Physforum could answer that. Link to comment Share on other sites More sharing options...
swansont Posted November 28, 2011 Share Posted November 28, 2011 But an experiment was (is?) made in Italy trying to detect a similar effect, where a magnetic field would rotate the polarization of light. Did this imply the creation-annihilation of a pair of exotic particles on the trip? I don't remember. Do you have a link? If you do this in a medium it's Faraday rotation http://en.wikipedia.org/wiki/Faraday_effect Link to comment Share on other sites More sharing options...
Enthalpy Posted December 6, 2011 Share Posted December 6, 2011 Faraday effect wouldn't need an experiment nowadays, at its name implies... In vacuum of course. But I didn't find again the address quickly. Link to comment Share on other sites More sharing options...
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